Synonyms for leak

noun

1. Loss through leakage

   leakage, loss, flow, seepage, drop, escape, outgoing, incoming, detriment, short circuit, falling off, destruction, expenditure, decrease; see also waste 1.

2. An aperture through which a leak may take place

   puncture, chink, crevice; see hole 1.

3. Surreptitious news

   news leak, exposure, slip; see advertisement 1, news 1.

verb

1. To escape by leaking

   drip, ooze, drool; see flow 2.

2. To permit leakage

   be cracked, be broken, be split, have a fissure, have a hole, be out of order, be in disrepair, permit wastage, have a slow leak.