carborundum vs trademark

carborundum and trademark both are nouns.

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

carborundum (noun)	trademark (noun)
an abrasive composed of silicon carbide crystals	a distinctive characteristic or attribute of someone or something
	a formally registered symbol identifying the manufacturer or distributor of a product

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