- 1[intransitive, transitive] to allow liquid or gas to get in or out through a small hole or crack a leaking pipe The roof was leaking. leak something The tank had leaked a small amount of water.
- 2[intransitive] (of a liquid or gas) to get in or out through a small hole or crack in something Water had started to leak into the cellar.
- 3[transitive] leak something (to somebody) to give secret information to the public, for example by telling a newspaper synonym disclose The contents of the report were leaked to the press. a leaked document Phrasal Verbsleak out
NAmE//lik//Verb Forms present simple I / you / we / they leak
he / she / it leaks
past simple leaked
-ing form leaking