trademark vs Bromo-seltzer

trademark and Bromo-seltzer both are nouns.

Word	Noun	Adjective	Verb	Adverb
trademark	Yes	No	Yes	No
Bromo-seltzer	Yes	No	No	No

trademark (noun)	Bromo-seltzer (noun)
a distinctive characteristic or attribute of someone or something	an antacid
a formally registered symbol identifying the manufacturer or distributor of a product

trademark (verb)	Bromo-seltzer (verb)
register the trademark of
mark with a brand or trademark