n. 25B6; noun
she turned the tap on : VALVE, stopcock, cock, spout; N. Amer. faucet, spigot, spile.
a phone tap in the embassy : LISTENING DEVICE, wiretap, wire, bug, bugging device, microphone, receiver.
25B6; verb
several barrels were tapped : DRAIN, bleed, milk; broach, open.
butlers were tapping ale : POUR (OUT), draw off, siphon off, pump out, decant.
their telephones were tapped : BUG, wiretap, monitor, overhear, eavesdrop on, spy on.
the resources were to be tapped for our benefit : DRAW ON, exploit, milk, mine, use, utilize, turn to account.
25A0; on tap
beers on tap : ON DRAUGHT, cask-conditioned, real-ale, from barrels.
(informal) trained staff are on tap : ON HAND, at hand, available, ready, handy, accessible, standing by.