Opinion
PALMER, J.
The plaintiff, The Mohegan Tribe of Indians of Connecticut, which owns and operates the Mohegan Sun Casino in Montville, brought this action against the named defendant, The Mohegan Tribe and Nation, Inc. (Mohegan Tribe and Nation), among others,1 seeking, inter alia, injunctive relief2 for the defendant’s alleged infringement of the plaintiffs trade name in violation of, inter alia, § 43 (a) of the Lanham Act, 15 U.S.C. § 1125 (a),3 and principles of Connecticut common [360]*360law.4 After a court trial, the court rejected the plaintiffs claims and rendered judgment for the defendant. The plaintiff appealed to the Appellate Court and we transferred the appeal to this court.5 We affirm the judgment of the trial court.
The following relevant facts are set forth in the trial court’s memorandum of decision. The first Native Americans referred to as Mohegans6 occupied land on the banks of the Hudson River in the region known today as New York state prior to the arrival of the European settlers. At the turn of the seventeenth century, a group of Mohegans left their tribal lands on the Hudson River and migrated to land within the borders of what is now the state of Connecticut. Various groups of Mohegans were involved in land disputes after the [361]*361turn of the seventeenth century, and the leadership of these groups was splintered. In 1966, however, John Hamilton, also known as Chief Rolling Cloud, emerged as a strong tribal leader and organized efforts to reclaim tribal lands that his people had lost. In 1970, a schism developed in the tribal leadership and Hamilton left to form his own group, which was known as the Mohegan Tribe and Nation. Hamilton died in 1988, before which he designated Eleanor Fortin to succeed him. The Mohegan Tribe and Nation, which is located in southeastern Connecticut, was incorporated in 1992. The incorporators of the Mohegan Tribe and Nation are Mohegan by virtue of ancestry.
The plaintiff is a group of Native Americans residing in southeastern Connecticut whose members did not follow Hamilton when he formed the Mohegan Tribe and Nation. In March, 1994, the federal government formally acknowledged the plaintiff as a sovereign American Indian nation.7 59 Fed. Reg. 12,140 (March 15, 1994), amended by 59 Fed. Reg. 37,144 (July 20, 1994); see Mohegan Nation of Connecticut Land Claims Settlement Act of 1994, § 2,25 U.S.C. 1775 (a) (1) (1994). Furthermore, Congress expressly has found that the plaintiff “is the successor in interest to the aboriginal entity known as the Mohegan Indian Tribe”; 25 U.S.C. § 1775 (a) (2) (1994); and “has existed in the geographic area that is currently the State of Connecticut for a long period preceding the colonial period of the history of [362]*362the United States.” 25 U.S.C. § 1775 (a) (3) (1994).8 The state of Connecticut also has recognized the plaintiff. See General Statutes § 47-59a (b).9 In 1996, the plaintiff commenced construction of the Mohegan Sun Casino in Montville, which today is a thriving casino operation.10 The plaintiff also conducts an annual festival, known as the “Wigwam Powwow,” which celebrates Mohegan traditions and history through song, dance and story telling. In addition, the plaintiff makes presentations to schools and civic organizations regarding the Mohegan culture.
In 1996, Chief Moigu Standing Bear (Standing Bear) assumed leadership of the Mohegan Tribe and Nation and, later that year, that entity became part of an organization known as the Confederation of The Mohegan-Pequot American Indian Nation and Affiliated Tribes, Inc. (Confederation).11 The defendant’s income is [363]*363derived primarily from the sale of arts and crafts and from federal grants and membership dues. Like the plaintiff, the defendant also conducts an annual festival, known as the Rolling Cloud Powwow, and it presents programs on Mohegan tradition and culture to interested members of the community. The Mohegan Tribe and Nation currently has an application pending before the Bureau of Indian Affairs seeking federal acknowledgment as a tribe. Additional facts will be set forth as necessary.
The plaintiff brought this action seeking to enjoin the defendant from using the names “Mohegan” and “Mohegan Tribe.”12 In particular-, the plaintiff alleged that, “[i]f the [defendant is] allowed to continue to . . . [use those names, the plaintiffs efforts] to operate the Mohegan [Sun] Casino and related facilities, to preserve the culture, heritage and traditions of, and to promote the general welfare of . . . the Mohegan People shall continue to be harmed, all to the detriment of the [plaintiff].” The trial court concluded that the plaintiff had failed to establish that the defendant’s use of those terms constituted an infringement upon the plaintiffs trade name under the Lanham Act or state common law and, therefore, rendered judgment in favor of the defendant. On appeal, the plaintiff contends that the trial court improperly: (1) denied trademark protection for the terms “Mohegan” and “Mohegan Tribe” under the Lanham Act; and (2) concluded that the defendant did not infringe on the plaintiffs name under state corn[364]*364mon law. We disagree and, accordingly, affirm the judgment of the trial court.
I
The plaintiff first challenges the trial court’s denial of trademark protection to the terms “Mohegan” and “Mohegan Tribe” under the Lanham Act. We reject this claim.
Under the Lanham Act, it is unlawful for any person, in connection with goods, services or containers for goods, to use in commerce “any word, term, name, symbol, or device, or any combination thereof, or any false designation of origin . . . which ... is likely to cause confusion ... as to the origin, sponsorship, or approval of . . . [the] goods, services, or commercial activities . . . .” 15 U.S.C. § 1125 (a) (1) (A) (1994). Therefore, to prevail on an infringement claim under the Lanham Act, a plaintiff must establish, first, “that it possesses a valid, legally protectible mark13 and [sec[365]*365ond] that [a] defendant’s subsequent use of a similar mark is likely to create confusion as to the origin of the [goods or services] at issue.”14 Lane Capital Management, Inc. v. Lane Capital Management, Inc., 192 F.3d 337, 344 (2d Cir. 1999). The trial court concluded that the plaintiff had failed to satisfy either of these two requirements. We agree with the trial court that, under the facts and circumstances of this case, the plaintiff did not prove that it possesses a legally protectible interest in the terms “Mohegan” and “Mohegan Tribe” for purposes of the Lanham Act.15
A
A plaintiff asserting a claim under § 43 (a) of the Lanham Act must establish that its mark is sufficiently distinctive to be worthy of protection. E.g., id., 344. In other words, “[t]o be valid and protectible, a mark must [366]*366be capable of distinguishing the products [or services] it marks from those of others.” Id. For purposes of determining whether a mark warrants protection under the Lanham Act, courts divide such marks “into five general categories of distinctiveness: 1) generic; 2) descriptive; 3) suggestive; 4) arbitrary; and 5) fanciful.” Genesee Brewing Co. v. Stroh Brewing Co., 124 F.3d 137, 142 (2d Cir. 1997). A term or phrase is generic when it refers to the genus of which the particular product, service or entity is a species. E.g., id., 143. In other words, “[a] generic term is one commonly used to denote a product or other item or entity, one that indicates the thing itself, rather than any particular feature or exemplification of it. ... A generic term does not merely identify a particular characteristic or quality of some thing; it connotes the basic nature of that thing.” (Citations omitted; internal quotation marks omitted.) Blinded Veterans Assn. v. Blinded American Veterans Foundation, 872 F.2d 1035, 1039 (D.C. Cir. 1989).
“A descriptive mark describes a product’s features, qualities or ingredients in ordinary language ... or describes the use to which a product is put .... A suggestive mark employs terms which do not describe but merely suggest the features of the product, requiring the purchaser to use imagination, thought and perception to reach a conclusion as to the nature of goods. . . . [T]he term fanciful, as a classifying concept, is usually applied to words invented solely for their use as trademarks. When the same legal consequences attach to a common word, i.e., when it is applied in an unfamiliar way, the use is called arbitrary. . . .
“Marks that are arbitrary, fanciful, or suggestive are considered inherently distinctive, and are automatically entitled to protection under the Lanham Act .... Marks that are descriptive are entitled to protection only if they have acquired a secondary meaning in the marketplace.” (Citations omitted; internal quotation [367]*367marks omitted.) Genesee Brewing Co. v. Stroh Brewing Co., supra, 124 F.3d 143. “Secondary meaning attaches when the name and the business have become synonymous in the mind of the public, submerging the primary meaning of the term in favor of its meaning as a word identifying that business.” (Internal quotation marks omitted.) Time, Inc. v. Petersen Publishing Co., 173 F.3d 113, 117 (2d Cir. 1999); accord Arrow Fastener Co. v. Stanley Works, 59 F.3d 384, 390 (2d Cir. 1995).
Generic terms are never entitled to trademark protection. E.g., Nabisco, Inc. v. PF Brands, Inc., 191 F.3d 208, 215 (2d Cir. 1999); Genesee Brewing Co. v. Stroh Brewing Co., supra, 124 F.3d 143. Such words “are totally without distinctiveness and are ineligible for protection as marks because to give them protection would be to deprive competitors of the right to refer to their [product or entity] by name.” Nabisco, Inc. v. PF Brands, Inc., supra, 215; see also Buraco Products, Inc. v. Joy Plastic Enterprises, Ltd., 40 F.3d 1431, 1442 (3d Cir. 1994) (“ [w]hat is generic in trademark law is a word with so few alternatives [perhaps none] for describing the good [or entity] that to allow someone to monopolize the word would debilitate competitors” [internal quotation marks omitted]). “[N]o matter how much money and effort the user of a generic term has poured into promoting the sale of its merchandise and what success it has achieved in securing public identification, it cannot deprive competing manufacturers of the product of the right to call an article by its name.”16 Aber[368]*368crombie & Fitch Co. v. Hunting World, Inc., 537 F.2d 4, 9 (2d Cir. 1976); accord Papercutter, Inc. v. Fay’s Drag Co., 900 F.2d 558, 562 (2d Cir. 1990).
We note, moreover, that “[t]he classification of a mark is a factual question. . . . The factual issue presented is how the purchasing public views the mark. The fact-finder is not the designated representative of the purchasing public, and the fact-finder’s own perception of the mark is not the object of the inquiry. Rather, the fact-finder’s function is to determine, based on the evidence before it, what the perception of the purchasing public is.” (Citation omitted.) Lane Capital Management, Inc. v. Lane Capital Management, Inc., supra, 192 F.3d 344. Therefore, “[w]e will substitute our own judgment on the matter for that of the [trial] court only if the [trial] court’s determination is clearly erroneous.” Bristol-Myers Squibb Co. v. McNeil-P.P.C., Inc., 973 F.2d 1033, 1040 (2d Cir. 1992); accord Genesee Brewing Co. v. Stroh Brewing Co., supra, 124 F.3d 144.
Finally, in cases involving trademarks that have been registered with the United States Patent and Trademark Office, a presumption of validity attaches to the mark and, consequently, the burden of proving genericness in an infringement action falls upon the defendant.17 See, e.g., Harley-Davidson, Inc. v. Grottanelli, 164 F.3d 806, 811 (2d Cir. 1999); Reese Publishing Co. v. Hampton International Communications, Inc., 620 F.2d 7, 11 (2d Cir. 1980). “But where, as [in the present case], the mark is not registered,18 this presumption of validity [369]*369does not come into play. Instead, the burden is on the plaintiff to prove that its mark ... is not generic.” (Citations omitted.) Reese Publishing Co. v. Hampton International Communications, Inc., supra, 11.
B
With these principles in mind, we turn to the merits of the plaintiffs claim. The trial court concluded that the terms “Mohegan” and “Mohegan Tribe” are generic and, consequently, that they are not entitled to trademark protection.19 The plaintiff contends that those terms are arbitrary or, in the alternative, either suggestive or descriptive. We agree with the trial court.20
At trial, the defendant claimed that it has the right to use the word “Mohegan” in its name because “Mohegan” is a generic term that refers to all Native Americans of Mohegan descent. Though not conclusive proof of a mark’s generic nature, dictionary definitions of a word are significant evidence of genericness because “they usually reflect the public’s perception of a word’s meaning and its contemporary usage.” Harley-Davidson, Inc. v. Grottanelli, supra, 164 F.3d 810. As we have indicated; see footnote 6 of this opinion; the term “Mohegan” is defined as “a member of the Mohegan people” and “an Indian people of southeastern [370]*370Connecticut.” Webster’s Third New International Dictionary. As these definitions reflect, “Mohegan” is a generic term, that is, a term relating to or characteristic of a whole group or class, that may be used by any person of Mohegan heritage to identify himself or herself as a member of that particular group of Native American people. Indeed, aperson of Mohegan ancestry cannot be deprived of the right to call himself or herself Mohegan, for there is no other term that can be used to refer to that unique and distinct ancestral group.21 See Genesee Brewing Co. v. Stroh Brewing Co., supra, 124 F.3d 145 (“[a]t the least, if no commonly used alternative effectively communicates the same functional information, the term that denotes the product is generic”). Thus, just as a “word may ... be generic by virtue of its association with a particular region, cultural movement, or legend”; Otokoyama Co. Ltd. v. Wine of Japan Import, Inc., 175 F.3d 266, 271 (2d Cir. 1999); so may a word be generic when, as in the present case, it denotes a person or people of a particular heritage or nationality. See Filipino Yellow Pages, Inc. v. Asian Journal Publications, Inc., 198 F.3d 1143, 1147 (9th Cir. 1999) (“[T]he parties [to this Lanham Act case] do not dispute that ‘Filipino’ ... [is a] generic [term]. The word ‘Filipino’ is a clearly generic term used to refer to ‘a native of the Philippine islands’ or ‘a citizen of the Republic of the Philippines.’ Webster’s Ninth New Collegiate Dictionary 462 [1986].”).
The word “tribe” also is generic in the context presented by this case. “Tribe” is the term commonly, if not exclusively, used to refer to a group or community of Native Americans who share a common heritage, [371]*371history, culture and geography.22 Indeed, it is difficult to imagine a term other than “tribe” to describe a particular group or community of Indians whose members, by virtue of their long-standing association and shared culture and ancestry, wish to identify themselves as part of that group or community.23
Clearly, the terms “Mohegan” and “tribe” are generic. In evaluating whether the two words taken together are generic, however, we look to the term as a whole rather than to its constituent or component parts individually.24 E.g., Committee for Idaho's High Desert, Inc. v. Yost, 92 F.3d 814, 821 (9th Cir. 1996); Berner International Corp. v. Mars Sales Co., 987 F.2d 975, 981 (3d Cir. 1993); see Reese Publishing Co. v. Hampton International Communications, Inc., supra, 620 F.2d 11 n.l. The term “Mohegan Tribe,” like its component parts, is generic because it denotes a distinctive and identifiable group of Native Americans of Mohegan ancestry. Indeed, there is no other way to refer to a community [372]*372of Native Americans of that particular ancestry; simply put, a Mohegan tribe must be permitted to describe itself as such because that is what it is.25
The plaintiff nevertheless claims that the defendant should be prohibited from referring to itself as a [373]*373Mohegan tribe because the plaintiff, unlike the defendant, has received federal acknowledgment. In essence, this argument boils down to a claim that only the plaintiff may hold itself out as a Mohegan tribe because it alone has received federal acknowledgment. We are not persuaded by this contention. As we have indicated, the application of the Mohegan Tribe and Nation for acknowledgment by the Bureau of Indian Affairs is pending, and the plaintiff conceded at oral argument that the Mohegan Tribe and Nation yet may be successful in achieving such acknowledgment.26 Thus, the fact that the plaintiff already has received federal acknowledgment does not, by itself, preclude the Mohegan Tribe and Nation from achieving that goal as well. Indeed, if it were true that the plaintiffs receipt of federal acknowledgment automatically disqualified any other group from attaining acknowledgment as a Mohegan tribe, then the application of the Mohegan Tribe and Nation to the Bureau of Indian Affairs would have been rejected summarily upon filing.27 Thus, the plaintiff has not established that it necessarily is the sole group or community of Native Americans residing in southeastern Connecticut that legitimately may lay claim to status as a Mohegan tribe.28
[374]*374In light of the trial court’s factual findings, we also are unwilling to conclude that the defendant may not refer to itself as what it claims to be, namely, a Mohegan tribe. The evidence supports the trial court’s finding that the lineage of the defendant’s incorporators and membership may be traced to deceased Mohegan tribal leaders29 and, in addition, that, for decades, the defendant and its predecessor entity have held themselves out to the public as a Mohegan tribe and have engaged in activities consistent with such tribal status. Contrary [375]*375to the plaintiffs claim, we are persuaded that these findings are sufficient to support the conclusion that, at least in the context of this case, the defendant should not be precluded from identifying itself as a Mohegan tribe.30 We, therefore, conclude that the trial court properly concluded that the plaintiff failed to shoulder its burden of proving that the defendant is prohibited, under the Lanham Act, from holding itself out to the public as a Mohegan tribe.31
II
The plaintiff also claims that it is entitled to relief under common-law principles of unfair competition. We disagree.
Under our common law, “[a] trade name will be protected but not until it has in fact become in the market [376]*376the name for goods or services coming from or through a particular source or the name for a particular business. This special significance, once acquired, is thereafter its primary meaning in the market, though lexicographically it may have an earlier, different meaning.” (Internal quotation marks omitted.) Shop-Rite Durable Supermarket, Inc. v. Mott’s Shop Rite, 173 Conn. 261, 266, 377 A.2d 312 (1977).
However, “[n]o inflexible rule can be laid down as to what use of names will constitute unfair competition; this is a question of fact. The question to be determined is whether or not, as a matter of fact, the name is such as to cause confusion in the public mind as between the plaintiffs business and that of the defendant, resulting in injury to the plaintiff. The test is whether the public is likely to be deceived. ... If the court finds that the effect of appropriation by one corporation of a distinctive portion of the name of another is to cause confusion and uncertainty in the latter’s business, injure them pecuniarily and otherwise, and deceive and mislead the public, relief will be afforded. ... It is not sufficient that some person may possibly be misled but the similarity must be such that any person, with such reasonable care and observation as the public generally [is] capable of using and may be expected to exercise, would be likely to mistake one for the other.”32 (Internal quotation marks omitted.) Id., 265-66; accord Yale Cooperative Corp. v. Rogin, 133 Conn. 563, 571, 53 A.2d 383 (1947); Middletown Trust Co. v. Middletown National Bank, 110 Conn. 13, 20-21, 147 A. 22 (1929).
In the present case, the trial court found that the plaintiff had not proven that the public was likely to be [377]*377confused by the defendant’s use of the terms “Mohegan” and “Mohegan Tribe.” Consistent with that finding, the trial court concluded that the plaintiff failed to establish that it had been injured in any way as a result of the defendant’s use of those terms.
At trial, the plaintiff sought to establish that the defendant’s use of the terms “Mohegan” and “Mohegan Tribe” caused confusion among members of the public. The plaintiff further sought to prove that this confusion was harmful because it had resulted in the dilution of the plaintiffs trade name and had caused the plaintiff to lose a measure of control over the use of that name. In support of these claims, the plaintiff adduced testimony that: a Montville automobile dealer who had purchased advertising space in a brochure published by the defendant in connection with its annual “powwow” mistakenly believed that he was dealing with the plaintiff; the defendant regularly received telephone calls from persons seeking to locate the plaintiff or the Mohegan Sun Casino; and a public school that had intended to invite the plaintiff to make a presentation about Mohegan culture and history mistakenly contacted the defendant about doing so instead.
Finally, the plaintiff also sought to establish that the defendant intentionally misled members of the public by holding itself out to be the federally acknowledged Mohegan tribe. In support of this claim, the plaintiff elicited testimony from several witnesses indicating that Standing Bear and others affiliated with the defendant had failed to distinguish sufficiently the defendant from the plaintiff in its dealings with the public.
Although the defendant did not challenge the plaintiff’s evidence regarding the apparent confusion surrounding the school presentation and the automobile dealer’s purchase of advertising space in the defendant’s brochure, the defendant vigorously contested the [378]*378plaintiffs claim regarding the telephone calls and the allegation that it intentionally misled the public as to its identity. Indeed, several of the defendant’s members, including Standing Bear, testified that on the infrequent occasions that the defendant received telephone calls from persons trying to reach the plaintiff, those callers immediately were referred to the plaintiff. Those witnesses also testified that neither the defendant nor its members ever attempted to mislead the public regarding its identity.
The trial court concluded that the plaintiffs evidence was insufficient to establish that confusion was likely to result from the defendant’s continued use of the terms “Mohegan” and “Mohegan Tribe.” The court also found that the plaintiff failed to “demonstrate any harm to itself or its business,” and that “the activities of the [defendant] pose no danger to the plaintiff, nor do they in any way interfere with the activities of the casino.”33 In so finding, the trial court noted that the plaintiff and the defendant are not in commercial competition with one another; as the court stated, the plaintiff’s main business venture is the Mohegan Sun Casino, whereas the defendant’s only commercial activity is the sale of arts and crafts.34 The trial court further found that in those areas in which the activities of the plaintiff and defendant overlap, namely, their annual powwows and presentations to schools and civic organizations about Mohegan culture and history, the plaintiff failed to prove that the defendant’s use of the terms “Mohegan” and “Mohegan Tribe” had caused any significant actual [379]*379confusion among the public. Finally, the court concluded that the plaintiff did not prove that the defendant’s continued use of those terms was likely to cause such confusion in the future.35
“[Wjhere the factual basis of the [trial] court’s decision is challenged we must determine whether the facts set out in the memorandum of decision are supported by the evidence or whether, in light of the evidence and the pleadings in the whole record, those facts are clearly erroneous. ... It is not our function to retry cases.” (Citation omitted; internal quotation marks omitted.) Vallerie v. Stonington, 253 Conn. 371, 373, 751 A.2d 829 (2000). Contrary to the plaintiffs claim, the evidence, and lack thereof, supports the trial court’s conclusion that the plaintiff failed to meet its burden of proving that the defendant’s use of the terms “Mohegan” and “Mohegan Tribe” is likely to cause confusion among the public and thereby cause harm to the plaintiff. Consequently, the court’s decision to reject the plaintiffs claim of unfair competition is not clearly erroneous. That claim, therefore, must fail.
The judgment is affirmed.
In this opinion the other justices concurred.