verb (used with object), o·ver·blew, o·ver·blown, o·ver·blow·ing.
  1. to give excessive importance or value to: to overblow one's own writing.
  2. to overinflate.
  3. to blow over the surface of, as the wind, sand, or the like: dead leaves overblowing the yard.
  4. to blow (a wind instrument or an organ pipe) in such a way as to produce overtones.
verb (used without object), o·ver·blew, o·ver·blown, o·ver·blow·ing.
  1. to overblow a wind instrument.

Origin of overblow

Middle English word dating back to 1350–1400; see origin at over-, blow2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for overblow


verb -blows, -blowing, -blew or -blown
  1. music to blow into (a wind instrument) with greater force than normal in order to obtain a harmonic or overtone instead of the fundamental tone
  2. to blow (a wind instrument) or (of a wind instrument) to be blown too hard
  3. to blow over, away, or across
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