definition of
tap

[1] #1 tap v. cut a female screw thread with a tap. wn

[2] #2 tap n. [pat, rap] the sound made by a gentle blow. wn

[3] #3 tap v. draw from or dip into to get something; "tap one's memory"; "tap a source of money". wn

[4] #4 tap v. [tip] strike lightly; "He tapped me on the shoulder". wn

[5] #5 tap v. [exploit] draw from; make good use of; "we must exploit the resources we are given wisely". wn