blowup vs photo

blowup and photo both are nouns.

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

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

blowup: a photographic print that has been enlarged
photo: a representation of a person or scene in the form of a print or transparent slide or in digital format

Other hypernyms of blowup include exposure, photograph, pic, picture.

blowup (noun)	photo (noun)
a photographic print that has been enlarged	a representation of a person or scene in the form of a print or transparent slide or in digital format
an unrestrained expression of emotion
a violent release of energy caused by a chemical or nuclear reaction