trademark vs Segway

trademark and Segway both are nouns.

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

trademark (noun)	Segway (noun)
a distinctive characteristic or attribute of someone or something	(trademark) a self-balancing personal transportation device with two wheels; can operate in any level pedestrian environment
a formally registered symbol identifying the manufacturer or distributor of a product

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