[ bak-lawg, -log ]
See synonyms for backlog on
  1. a reserve or accumulation, as of stock, work, or business: a backlog of business orders.

  2. a large log at the back of a hearth to keep up a fire.: Compare forestick.

verb (used with object),back·logged, back·log·ging.
  1. to hold in reserve, as for future handling or repair.

  2. to enter and acknowledge (an order) for future shipment.

verb (used without object),back·logged, back·log·ging.
  1. to accumulate in a backlog: Orders are starting to backlog faster than we can process them.

Origin of backlog

First recorded in 1675–85; back1 + log1

Other words for backlog Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use backlog in a sentence

British Dictionary definitions for backlog


/ (ˈbækˌlɒɡ) /

  1. an accumulation of uncompleted work, unsold stock, etc, to be dealt with

  2. mainly US and Canadian a large log at the back of a fireplace

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