addition

noun

ad·​di·​tion ə-ˈdi-shən How to pronounce addition (audio)
a-
1
: a part added (as to a building or residential section)
The addition expanded the kitchen.
2
: anything or anyone added : increase
The clerk was a recent addition to the staff.
3
: the act or process of adding
a recipe enhanced by the addition of freshly ground pepper
especially : the operation of combining numbers so as to obtain an equivalent simple quantity
schoolchildren learning about addition and subtraction
4
: direct chemical combination of substances into a single product
Phrases
in addition
: besides entry 2, also
The job requires a college degree and, in addition, at least two years of experience.
in addition to
: combined or associated with : besides entry 1 sense 2
In addition to soup, several salads were served.

Examples of addition in a Sentence

The children learned addition and subtraction. The museum's collection includes several new additions.
Recent Examples on the Web In addition to its radio airplay, the song earned 436,000 official U.S. streams March 1-7. Kevin Rutherford, Billboard, 17 Mar. 2024 In addition to the fatal crash, Velasquez Salgado also rear-ended an elderly woman’s car earlier during the pursuit, causing her injuries, Coto said. Lyndsay Winkley, San Diego Union-Tribune, 17 Mar. 2024 Monson replaced Larry Reynolds at Long Beach State in 2007 and reached the National Invitation Tournament four times in addition to his one trip to the NCAA tournament. Ben Bolch, Los Angeles Times, 17 Mar. 2024 In addition to their impressive dance abilities, Alison possesses a unique and engaging choreographic style. Heide Janssen, Orange County Register, 17 Mar. 2024 DirecTV Stream also has a free two-month trial for the Max add-on; after that, the subscription auto-renews at $15.99 per month in addition to DirecTV’s monthly fee ($69.99 and up). Danielle Directo-Meston, The Hollywood Reporter, 17 Mar. 2024 Free compost in Sunnyvale In addition to the compost site at the Stevens Creek Quarry, Cupertino residents have another option for picking up free compost and mulch. Anne Gelhaus, The Mercury News, 17 Mar. 2024 Today, in addition to its larger, long-standing bases in Qatar, Bahrain and the United Arab Emirates, the United States has some 4,000 troops in Jordan, 2,500 in Iraq and 900 in Syria. Missy Ryan, Washington Post, 17 Mar. 2024 In addition to the loss of 346 lives in the two crashes, the problems have cost the company tens of billions of dollars and damaged its reputation. Chris Isidore, CNN, 17 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'addition.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Middle English addicioun, borrowed from Anglo-French addicion, borrowed from Latin additiōn-, additiō, from addi-, variant stem of addere "to add" + -tiōn-, -tiō, suffix of action nouns

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of addition was in the 14th century

Dictionary Entries Near addition

Cite this Entry

“Addition.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/addition. Accessed 28 Mar. 2024.

Kids Definition

addition

noun
ad·​di·​tion ə-ˈdish-ən How to pronounce addition (audio)
a-
1
: the result of adding : increase
2
: the act, process, or operation of adding
3
: a part added (as to a building)

More from Merriam-Webster on addition

Last Updated: - Updated example sentences
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