tap vs rap

tap and rap both are nouns.

Word	Noun	Adjective	Verb	Adverb
tap	Yes	No	Yes	No
rap	Yes	No	Yes	No

As nouns, tap and rap are synonyms defined as:

Other synonyms of tap include pat.

As nouns, tap and rap are synonyms defined as:

Other synonyms of tap include strike.

As verbs, tap and rap are synonyms defined as:

Other synonyms of tap include knock, pink.

tap (noun)	rap (noun)
a light touch or stroke	the act of hitting vigorously
the act of tapping a telephone or telegraph line to get information	a reproach for some lapse or misdeed
a faucet for drawing water from a pipe or cask	voluble conversation
a plug for a bunghole in a cask	genre of African-American music of the 1980s and 1990s in which rhyming lyrics are chanted to a musical accompaniment; several forms of rap have emerged
a tool for cutting female (internal) screw threads	the sound made by a gentle blow
a small metal plate that attaches to the toe or heel of a shoe (as in tap dancing)	a gentle blow
the sound made by a gentle blow
a gentle blow

tap (verb)	rap (verb)
make a solicitation or entreaty for something; request urgently or persistently	talk volubly
draw from; make good use of	strike sharply
strike lightly	perform rap music
cut a female screw thread with a tap	make light, repeated taps on a surface
pierce in order to draw a liquid from
walk with a tapping sound
dance and make rhythmic clicking sounds by means of metal plates nailed to the sole of the dance shoes
draw (liquor) from a tap
tap a telephone or telegraph wire to get information
make light, repeated taps on a surface
draw from or dip into to get something
furnish with a tap or spout, so as to be able to draw liquid from it