Longman Dictionary of Contemporary English homepage

Date: 1900-2000
Origin: backlog 'large piece of wood placed at the back of a fire' (17-21 centuries)

backlog

noun
     
backā€§log [countable usually singular]
a large amount of work that you need to complete, especially work that should already have been completed
backlog of
a backlog of requests
It's going to take us months to clear the backlog.

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary