snapshot vs photo

snapshot and photo both are nouns.

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

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

snapshot: an informal photograph; usually made with a small hand-held camera
photo: 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, photograph, pic, picture.

snapshot (noun)	photo (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