addition - definition in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online (US)

Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “addition”

See all translations

addition

noun uk   us   /əˈdɪʃ.ən/
B2 [U] the process of adding numbers or amounts together: Twice a week the children are tested in basic mathematical skills such as addition (= calculating the total of different numbers put together) and subtraction.in addition (to) B1 as well (as): In addition to his apartment in Manhattan, he has a villa in Italy and a castle in Scotland.B2 [C] something that has been added to something else: A secretary would be a welcome/useful addition to our staff.humorous I hear you're expecting a small addition to the family (= you are going to have a baby)! [C] the act of adding a substance or thing to something else: Most working environments are improved by the addition of (= by adding) a few plants and pictures. [C] US (UK extension) a new part added to a house or other building: We're building an addition to our house.
More examples
(Definition of addition from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of addition?
Add Cambridge dictionaries to your browser to your website

Definitions of “addition” in other dictionaries

Word of the Day

extra time

a period of time in a sports game in which play continues if neither team has won in the usual time allowed for the game

Word of the Day

She’s got very good posture. (How we stand and sit)

by Liz Walter,
May 27, 2015
Recently on this blog, we looked at the words that we use to describe the way we move. This week we’re looking at words for describing our bodies when they are still, whether we are standing or sitting. Since most of us do far too much of this, let’s start with sitting.

Read More 

ancestral health noun

May 25, 2015
diet based on the presumed diet of our Palaeolithic ancestors ‘Ancestral health,’ to use a term popular among Paleo followers, has gone mass.

Read More