- the act or process of adding or uniting.
- the process of uniting two or more numbers into one sum, represented by the symbol +.
- the result of adding.
- something added.
- a wing, room, etc., added to a building, or abutting land added to real estate already owned.
- Chemistry. a reaction in which two or more substances combine to form another compound.
- in addition to, as well as; besides: In addition to directing the play, she designed most of the scenery.
Origin of addition
SynonymsSee more synonyms for addition on Thesaurus.com
Examples from the Web for addition
In addition, foreign films were limited by a system of licensure to a third of the number of domestic films.Propaganda, Protest, and Poisonous Vipers: The Cinema War in Korea
December 30, 2014
In addition to visiting the tomb of John Paul, who died of natural causes in 2005, Agca asked to see his successor, Pope Francis.Pope-Shooter Ali Agca’s Very Weird Vatican Visit
Barbie Latza Nadeau
December 29, 2014
In addition to the negative on-field attention, off-the-field problems were just as bad this year.Is Any College Football Coach Worth $60 Million? Jim Harbaugh Is
December 20, 2014
In addition, he had made prudent investments and, except for his wine cellar, did not live lavishly.Alfred Hitchcock’s Fade to Black: The Great Director’s Final Days
December 13, 2014
In addition, because House Democrats were cut out of the negotiations over the bill, they don't feel any incentive to play ball.Nancy Pelosi Plays Hardball On Cromnibus
December 11, 2014
I have another favour to ask, in addition to the many claims you already have upon me.Philothea
Lydia Maria Child
But the family-party was soon to be broken up—not by subtraction, but by addition.Weighed and Wanting
In addition, there were as many of books and magazines as she could wish.Within the Law
In addition, these vegetables may be combined in almost any way.Woman's Institute Library of Cookery, Vol. 4
Woman's Institute of Domestic Arts and Sciences
The same singers, with the addition of Anastasia Robinson, appeared in the season of 1721-22.Handel
Edward J. Dent
- the act, process, or result of adding
- a person or thing that is added or acquired
- a mathematical operation in which the sum of two numbers or quantities is calculated. Usually indicated by the symbol +
- mainly US and Canadian a part added to a building or piece of land; annexe
- obsolete a title following a person's name
- in addition (adverb) also; as well; besides
- in addition to (preposition) besides; as well as
Word Origin and History for addition
late 14c., "action of adding numbers;" c.1400, "that which is added," from Old French adition "increase, augmentation" (13c.), from Latin additionem (nominative additio) "an adding to, addition," noun of action from past participle stem of addere (see add). Phrase in addition to "also" is from 1681.
- The act, process, or operation of adding two or more numbers to compute their sum.
Idioms and Phrases with addition
see in addition.