Styrofoam vs trademark

Styrofoam and trademark both are nouns.

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

Styrofoam (noun)	trademark (noun)
a light resilient foam of polystyrene	a distinctive characteristic or attribute of someone or something
	a formally registered symbol identifying the manufacturer or distributor of a product

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