A trademark is a distinctive feature of something or someone, and to trademark is to brand something, especially in a legal sense.

You know how a comedian often has a particular joke she's famous for? That's her trademark. A trademark is something specific to a person that can be used to identify her. The legal sense of trademark is an official representation of a business or product that only they can legally use — like the Nike swoosh or their motto "Just do it."

Definitions of trademark

n a formally registered symbol identifying the manufacturer or distributor of a product

a pen with indelible ink that will write on any surface
logo, logotype
a company emblem or device
Type of:
mark, marker, marking
a distinguishing symbol

n a distinctive characteristic or attribute

earmark, hallmark, stylemark
mold, mould
a distinctive nature, character, or type
Type of:
a distinguishing quality

v mark with a brand or trademark

brand, brandmark
Type of:
label, mark, tag
attach a tag or label to

v register the trademark of

“The company trademarked their new gadget”
Type of:
file, register
record in a public office or in a court of law

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