snapshot vs pic

snapshot and pic both are nouns.

Word	Noun	Adjective	Verb	Adverb
snapshot	Yes	No	No	No
pic	Yes	No	No	No

As nouns, pic is a hypernym of snapshot; that is, pic is a word with a broader meaning than snapshot:

snapshot: an informal photograph; usually made with a small hand-held camera
pic: a representation of a person or scene in the form of a print or transparent slide or in digital format

Other hypernyms of snapshot include exposure, photo, photograph, picture.

snapshot (noun)	pic (noun)
an informal photograph; usually made with a small hand-held camera	a representation of a person or scene in the form of a print or transparent slide or in digital format
	a form of entertainment that enacts a story by sound and a sequence of images giving the illusion of continuous movement