From WordNet (r) 3.0 (2006):
tap
n 1: the sound made by a gentle blow [syn: pat, rap, tap]
2: a gentle blow [syn: rap, strike, tap]
3: a faucet for drawing water from a pipe or cask [syn: water
faucet, water tap, tap, hydrant]
4: a small metal plate that attaches to the toe or heel of a
shoe (as in tap dancing)
5: a tool for cutting female (internal) screw threads
6: a plug for a bunghole in a cask [syn: tap, spigot]
7: the act of tapping a telephone or telegraph line to get
information [syn: wiretap, tap]
8: a light touch or stroke [syn: tap, pat, dab]
v 1: cut a female screw thread with a tap
2: draw from or dip into to get something; "tap one's memory";
"tap a source of money"
3: strike lightly; "He tapped me on the shoulder" [syn: tap,
tip]
4: draw from; make good use of; "we must exploit the resources
we are given wisely" [syn: exploit, tap]
5: tap a telephone or telegraph wire to get information; "The
FBI was tapping the phone line of the suspected spy"; "Is
this hotel room bugged?" [syn: wiretap, tap, intercept,
bug]
6: furnish with a tap or spout, so as to be able to draw liquid
from it; "tap a cask of wine"
7: make light, repeated taps on a surface; "he was tapping his
fingers on the table impatiently" [syn: tap, rap,
knock, pink]
8: walk with a tapping sound
9: dance and make rhythmic clicking sounds by means of metal
plates nailed to the sole of the dance shoes; "Glover
tapdances better than anybody" [syn: tapdance, tap]
10: draw (liquor) from a tap; "tap beer in a bar"
11: pierce in order to draw a liquid from; "tap a maple tree for
its syrup"; "tap a keg of beer"
12: make a solicitation or entreaty for something; request
urgently or persistently; "Henry IV solicited the Pope for a
divorce"; "My neighbor keeps soliciting money for different
charities" [syn: solicit, beg, tap]