trademark

UK: /ˈtreɪdmɑː^rk/ US: /ˈtreɪdˌmɑrk/ ,(trād′märk′)

WordReference Random House Learner's Dictionary of American English © 2025

trade•mark /ˈtreɪdˌmɑrk/   n. [countable]

1. Government a name, symbol, etc., adopted by a manufacturer to separate their products from others:
   A trademark must be registered with a government patent office.
2. a special mark or feature particular to or identified with a certain person or thing:
   You see where the carpenter engraved his initials; that's his trademark.

v. [~ + object]

3. to register the trademark of:
   to trademark the name of his product.

WordReference Random House Unabridged Dictionary of American English © 2025

trade•mark  (trād′märk′), n. 

1. any name, symbol, figure, letter, word, or mark adopted and used by a manufacturer or merchant in order to designate his or her goods and to distinguish them from those manufactured or sold by others. A trademark is a proprietary term that is usually registered with the Patent and Trademark Office to assure its exclusive use by its owner.
2. a distinctive mark or feature particularly characteristic of or identified with a person or thing.

v.t. 

3. to stamp or otherwise place a trademark designation upon.
4. to register the trademark of.

• trade + mark¹ 1565–75

Collins Concise English Dictionary © HarperCollins Publishers::

trademark / ˈtreɪdˌmɑːk/ noun

1. the name or other symbol used to identify the goods produced by a particular manufacturer or distributed by a particular dealer and to distinguish them from products associated with competing manufacturers or dealers. A trademark that has been officially registered and is therefore legally protected is known as a Registered Trademark
2. any distinctive sign or mark of the presence of a person or animal

verb (transitive)

1. to label with a trademark
2. to register as a trademark