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noun trade·mark \-ˌmärk\

Simple Definition of trademark

  • : something (such as a word) that identifies a particular company's product and cannot be used by another company without permission

  • : a quality or way of behaving, speaking, etc., that is very typical of a particular person, group, or organization

Source: Merriam-Webster's Learner's Dictionary

Full Definition of trademark

  1. 1 :  a device (as a word) pointing distinctly to the origin or ownership of merchandise to which it is applied and legally reserved to the exclusive use of the owner as maker or seller

  2. 2 :  a distinguishing characteristic or feature firmly associated with a person or thing <wearing his trademark bow tie and derby hat>

Examples of trademark in a sentence

  1. Kleenex is a registered trademark.

  2. Outspokenness has always been his trademark.

  3. Courtesy is the company's trademark.


First Known Use of trademark




transitive verb trade·mark

Definition of trademark

  1. :  to secure trademark rights for :  register the trademark of

TRADEMARK Defined for Kids


noun trade·mark \ˈtrād-ˌmärk\

Definition of trademark for Students

  1. :  a device (as a word) that points clearly to the origin or ownership of merchandise to which it is applied and that is legally reserved for use only by the owner

Medical Dictionary


noun trade·mark \ˈtrād-ˌmärk\

Medical Definition of trademark

  1. :  a device (as a word or mark) that points distinctly to the origin or ownership of merchandise to which it is applied and that is legally reserved for the exclusive use of the owner—compare service mark

Law Dictionary


noun trade·mark \ˈtrād-ˌmärk\

Legal Definition of trademark

  1. :  a mark that is used by a manufacturer or merchant to identify the origin or ownership of goods and to distinguish them from others and the use of which is protected by law — see also dilution, infringement, strong mark, weak mark, Trademark Act of 1946 — compare copyright, patent, service mark

Additional Notes on trademark

The Patent and Trademark Office registers trademarks and service marks that are used in interstate commerce or in intrastate commerce that affects interstate commerce. There are also state registration statutes for marks used in intrastate commerce. A trademark or service mark need not be registered for an owner to enforce his or her rights in court. The common law recognizes ownership of a trademark, established by actual and first use of the mark, but it extends only to the areas or markets where the mark is used. Federal registration of a trademark gives rise to a federal cause of action for infringement in addition to the common-law claim. Registration also serves as evidence of the owner's exclusive right to the continuous use and validity of the mark, and as constructive notice to the world of the claim to the mark. To be a valid trademark at common law and for federal registration, a mark must be distinctive; a descriptive mark may become distinctive by acquiring secondary meaning.

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