trademark vs Elavil

trademark and Elavil both are nouns.

Word	Noun	Adjective	Verb	Adverb
trademark	Yes	No	Yes	No
Elavil	Yes	No	No	No

trademark (noun)	Elavil (noun)
a distinctive characteristic or attribute of someone or something	a tricyclic antidepressant drug (trade name Elavil) with serious side effects; interacts with many other medications
a formally registered symbol identifying the manufacturer or distributor of a product

trademark (verb)	Elavil (verb)
register the trademark of
mark with a brand or trademark