[ blab ]
See synonyms for: blabblabbedblabbing on

verb (used with object),blabbed, blab·bing.
  1. to reveal indiscreetly and thoughtlessly: They blabbed my confidences to everyone.

verb (used without object),blabbed, blab·bing.
  1. to talk or chatter indiscreetly or thoughtlessly: Don't confide in him, because he blabs. She blabbed so much I couldn't hear the concert.

  1. idle, indiscreet chattering.

  2. a person who blabs; blabbermouth.

Origin of blab

1325–75; Middle English blabbe (noun), perhaps back formation from blaberen to blabber; cognate with Old Norse blabbra,German plappern
  • Also blab·ber [blab-er]. /ˈblæb ər/. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use blab in a sentence

British Dictionary definitions for blab


/ (blæb) /

verbblabs, blabbing or blabbed
  1. to divulge (secrets) indiscreetly

  2. (intr) to chatter thoughtlessly; prattle

  1. a less common word for blabber (def. 1), blabber (def. 2)

Origin of blab

C14: of Germanic origin; compare Old High German blabbizōn, Icelandic blabbra

Derived forms of blab

  • blabbing, noun, adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012