Sharpie vs trademark

Sharpie and trademark both are nouns.

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

As nouns, trademark is a hypernym of Sharpie; that is, trademark is a word with a broader meaning than Sharpie:

Sharpie: a pen with indelible ink that will write on any surface
trademark: a formally registered symbol identifying the manufacturer or distributor of a product

Other hypernyms of Sharpie include pen.

Sharpie (noun)	trademark (noun)
a pen with indelible ink that will write on any surface	a distinctive characteristic or attribute of someone or something
	a formally registered symbol identifying the manufacturer or distributor of a product

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