cafe vs caff

cafe and caff both are nouns.

Word	Noun	Adjective	Verb	Adverb
cafe	Yes	No	No	No
caff	Yes	No	No	No

As nouns, caff is a hyponym of cafe; that is, caff is a word with a more specific, narrower meaning than cafe:

Other hyponyms of cafe include cybercafe, espresso shop, estaminet, pull-in, pull-up.

cafe (noun)	caff (noun)
a small restaurant where drinks and snacks are sold	informal British term for a cafe