Synonyms for tap

noun

1. A light blow

   pat, rap, dab; see blow 1.

2. A spigot

   faucet, petcock, valve, spout; see faucet.

3. A partial sole used for repair

   patch, guard, cover, reinforcement.

on tap

verb

1. To strike lightly

   pat, touch, rap; see hit 1.

2. To puncture in order to draw liquid

   perforate, pierce, bore, drill, broach, stab, spear, riddle, spike, lance; see also penetrate 1.

   Antonyms close*, seal, solder.

3. To obtain by means of tapping

   draw, draw out, draw forth, pour out, drain, empty.