taphouse vs free house

taphouse and free house both are nouns.

Word	Noun	Adjective	Verb	Adverb
taphouse	Yes	No	No	No
free house	Yes	No	No	No

As nouns, free house is a hyponym of taphouse; that is, free house is a word with a more specific, narrower meaning than taphouse:

taphouse: tavern consisting of a building with a bar and public rooms; often provides light meals
free house: a public house that is not controlled by a brewery and so is free to sell different brands of beer and ale

Other hyponyms of taphouse include alehouse.

taphouse (noun)	free house (noun)
tavern consisting of a building with a bar and public rooms; often provides light meals	a public house that is not controlled by a brewery and so is free to sell different brands of beer and ale