taptaptaps2 (British) (Americanfaucet)noun1a thing that you turn to make something like water or gas come out of a pipe: Turn the tap off.2a light hit with your hand or fingers: They heard a tap at the door.taptaptapstappedtapping1verb (taps, tapping, tapped)to hit or touch somebody or something quickly and lightly: She tapped me on the shoulder. I tapped on the window.