tavern keeper vs tapper

tavern keeper and tapper both are nouns.

Word	Noun	Adjective	Verb	Adverb
tavern keeper	Yes	No	No	No
tapper	Yes	No	No	No

As nouns, tapper is a hyponym of tavern keeper; that is, tapper is a word with a more specific, narrower meaning than tavern keeper:

Other hyponyms of tavern keeper include tapster.

tavern keeper (noun)	tapper (noun)
the keeper of a public house	someone who wiretaps a telephone or telegraph wire
	a tavern keeper who taps kegs or casks
	a worker who uses a tap to cut screw threads
	a dancer who sounds out rhythms by using metal taps on the toes and heels of the shoes
	a person who strikes a surface lightly and usually repeatedly