Sharpie vs pen

Sharpie and pen both are nouns.

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

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

Other hypernyms of Sharpie include trademark.

Sharpie (noun)	pen (noun)
a pen with indelible ink that will write on any surface	female swan
	a writing implement with a point from which ink flows
	an enclosure for confining livestock
	a correctional institution for those convicted of major crimes
	a portable enclosure in which babies may be left to play

Sharpie (verb)	pen (verb)
	produce a literary work