italic vs fount

italic and fount both are nouns.

Word	Noun	Adjective	Verb	Adverb
italic	Yes	Yes	No	No
fount	Yes	No	No	No

As nouns, fount is a hypernym of italic; that is, fount is a word with a broader meaning than italic:

Other hypernyms of italic include case, face, font, typeface.

italic (noun)	fount (noun)
a typeface with letters slanting upward to the right	a plumbing fixture that provides a flow of water
a style of handwriting with the letters slanting to the right	a specific size and style of type within a type family

italic (adjective)	fount (adjective)
characterized by slanting characters