public house vs tap house

public house and tap house both are nouns.

Word	Noun	Adjective	Verb	Adverb
public house	Yes	No	No	No
tap house	Yes	No	No	No

As nouns, tap house is a hypernym of public house; that is, tap house is a word with a broader meaning than public house:

public house: tavern consisting of a building with a bar and public rooms; often provides light meals
tap house: a building with a bar that is licensed to sell alcoholic drinks

Other hypernyms of public house include tavern.

public house (noun)	tap house (noun)
tavern consisting of a building with a bar and public rooms; often provides light meals	a building with a bar that is licensed to sell alcoholic drinks