vignette vs photo

vignette and photo both are nouns.

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

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

vignette: a photograph whose edges shade off gradually
photo: a representation of a person or scene in the form of a print or transparent slide or in digital format

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

vignette (noun)	photo (noun)
a small illustrative sketch (as sometimes placed at the beginning of chapters in books)	a representation of a person or scene in the form of a print or transparent slide or in digital format
a photograph whose edges shade off gradually
a brief literary description