clapboard

2
[ klap-bawrd, -bohrd ]
/ ˈklæpˌbɔrd, -ˌboʊrd /

noun Movies.

a small board with a hinged stick attached that is clapped down at the beginning of the filming of a shot for use later in synchronizing sound and image in the editing of the film.

Origin of clapboard

2
Also called clapper board, clap·stick [klap-stik] /ˈklæpˌstɪk/.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for clapperboard (1 of 2)

clapperboard

/ (ˈklæpəˌbɔːd) /

noun

a pair of boards clapped together during film shooting in order to aid sound synchronization

British Dictionary definitions for clapperboard (2 of 2)

clapboard

/ (ˈklæpˌbɔːd, ˈklæbəd) /

noun

  1. a long thin timber board with one edge thicker than the other, used esp in the US and Canada in wood-frame construction by lapping each board over the one below
  2. (as modifier)a clapboard house

verb

(tr) to cover with such boards

Word Origin for clapboard

C16: partial translation of Low German klappholt, from klappen to crack + holt wood; related to Dutch claphout; see board
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