[awf-peek, of-]
  1. of, relating to, or during a period of less than maximum frequency, demand, intensity, or use: the off-peak travel season; off-peak train fares.
  2. lower than the maximum: off-peak production.

Origin of off-peak

First recorded in 1915–20 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for off-peak


  1. of or relating to services as used outside periods of intensive use or electricity supplied at cheaper rates during the night
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

Word Origin and History for off-peak

1906, originally in reference to electrical systems, from off (adv.) + peak (n.).

Online Etymology Dictionary, © 2010 Douglas Harper