Bromo-seltzer vs trademark

Bromo-seltzer and trademark both are nouns.

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

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

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