trademark vs Aqua-Lung

trademark and Aqua-Lung both are nouns.

Word	Noun	Adjective	Verb	Adverb
trademark	Yes	No	Yes	No
Aqua-Lung	Yes	No	No	No

trademark (noun)	Aqua-Lung (noun)
a distinctive characteristic or attribute of someone or something	a device (trade name Aqua-Lung) that lets divers breathe under water; scuba is an acronym for self-contained underwater breathing apparatus
a formally registered symbol identifying the manufacturer or distributor of a product

trademark (verb)	Aqua-Lung (verb)
register the trademark of
mark with a brand or trademark