estaminet vs coffee bar

estaminet and coffee bar both are nouns.

Word	Noun	Adjective	Verb	Adverb
estaminet	Yes	No	No	No
coffee bar	Yes	No	No	No

As nouns, coffee bar is a hypernym of estaminet; that is, coffee bar is a word with a broader meaning than estaminet:

estaminet: a small (and usually shabby) cafe selling wine and beer and coffee
coffee bar: a small restaurant where drinks and snacks are sold

Other hypernyms of estaminet include cafe, coffee shop, coffeehouse.

estaminet (noun)	coffee bar (noun)
a small (and usually shabby) cafe selling wine and beer and coffee	a small restaurant where drinks and snacks are sold