- an alternating ticking sound, as that made by a clock.
- to emit or produce a ticking sound, like that of a clock.
Origin of ticktock
First recorded in 1840–50; imitative
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a ticking sound as made by a clock
- (intr) to make a ticking sound
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