addition

noun
ad·​di·​tion | \ ə-ˈdi-shən, a-\

Definition of addition

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
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.

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Synonyms for addition

Synonyms

annex, extension, penthouse

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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

Instead of using lash glue — which, in addition to being wildly messy, can also cause allergies — these babies stick on your lashes with magnets. Zoë Weiner, Teen Vogue, "How to Apply Magnetic Lashes," 8 Jan. 2019 In addition to higher pay and resources, the 33,000-member teachers union is also trying to win restrictions on the growth of public charter schools. Tawnell D. Hobbs, WSJ, "Teachers Strike Looms for a Half-Million Children in Los Angeles," 6 Jan. 2019 Today it was announced that Ewan McGregor will play the designer, in addition to being executive producer on the project. Chrissy Rutherford, Harper's BAZAAR, "Ewan McGregor is Set to Play Halston in New TV Series," 3 Jan. 2019 In addition to sipping wine in historic buildings, RH designed an outdoor pavilion complete with manicured landscaping and draped pergolas to host tastings of rare and limited wines. Sara Rodrigues, House Beautiful, "Restoration Hardware's New California Compound Is A Wine Lover's Dream," 2 Jan. 2019 In addition to the old favorites leaving Netflix, Disney has a lot in the works that'll really beef up the streaming offerings. Marisa Lascala, Good Housekeeping, "The Disney+ Streaming Service Sounds Like It's Going to Be Every Parent's BFF," 2 Jan. 2019 In addition to her busy work as a stylist, Dinkin is also an experienced and in-demand host. Kayleigh Roberts, Marie Claire, "Who Is Sara Dinkin? Everything You Need to Know About Kristen Stewart's New Girlfriend," 26 Dec. 2018 In addition to citing Japanese musician Haruomi Hosono and pioneering synth group Art of Noise as inspirations, Zeta’s sound was also shaped by her obsession with postmodern furniture. Rachel Hahn, Vogue, "The Argentinian Artist Whose Colorful Closet and Music Are Inspired by Postmodern Furniture," 24 Dec. 2018 In addition to the $7.8 million penalty, the company committed to a number of compliance enhancements. Samuel Rubenfeld, WSJ, "Carbon-Fiber Firm to Pay $7.8 Million in Sanctions Settlement," 21 Dec. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'addition.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of addition

14th century, in the meaning defined at sense 1

History and Etymology for addition

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

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Statistics for addition

Last Updated

11 Jan 2019

Look-up Popularity

Time Traveler for addition

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

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More Definitions for addition

addition

noun

English Language Learners Definition of addition

: the act or process of joining something to something else : the act or process of adding something

mathematics : the act or process of adding numbers

: something or someone more that is included : something or someone that is added

addition

noun
ad·​di·​tion | \ ə-ˈdi-shən \

Kids Definition of addition

1 : the act or process of adding numbers to obtain their sum
2 : something added an addition to a house
in addition
: as something more
in addition to
: along with or together with There was ice cream in addition to cake and pie.

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Comments on addition

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