trademark vs Invar

trademark and Invar both are nouns.

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

trademark (noun)	Invar (noun)
a distinctive characteristic or attribute of someone or something	an alloy of iron and nickel having a low coefficient of thermal expansion; used in tuning forks and measuring tapes and other instruments
a formally registered symbol identifying the manufacturer or distributor of a product

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