addition

noun
ad·​di·​tion | \ ə-ˈdi-shən How to pronounce addition (audio) , 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

In addition to members of the royal family, representatives from the numerous Welsh charities Charles supports are also in attendance at today's party. Caroline Hallemann, Town & Country, "Camilla, the Duchess of Cornwall, Just Arrived at Buckingham Palace Wearing a Green Look," 5 Mar. 2019 In addition to his music, Lionel also launched a home collection, sold exclusively at J.C. Penney stores. Marie Milano, Country Living, "A Detailed Timeline of Lionel Richie's Marriages and Relationships," 3 Mar. 2019 In addition to their successful careers in entertainment, Pompeo and Ivery are also raising three young kids: Stella Luna, born 2009; Sienna May, born 2014; and Eli Christopher, born 2016. Amanda Garrity, Good Housekeeping, "Ellen Pompeo’s Husband Chris Ivery Doesn't Watch 'Grey's Anatomy' and We Totally Get It," 1 Mar. 2019 In addition to serving looks on the red carpet, Miley also provided entertainment for the evening. Erica Gonzales, Harper's BAZAAR, "Miley Cyrus and Liam Hemsworth Make a PDA-Filled Red Carpet Appearance at a Charity Gala," 1 Mar. 2019 In addition to those methods, your doctor might rely on a slit lamp to get a close-up look at your eye. Kasandra Brabaw, SELF, "So, You Got Semen in Your Eye. Here's What to Do," 1 Mar. 2019 In addition to the romances, another parallel element in the story has to do with Hiccup and Toothless each maturing into leadership roles. Soren Andersen, The Seattle Times, "‘How to Train Your Dragon: The Hidden World’: Third film soars with extraordinary visuals," 20 Feb. 2019 In addition to clothes, there are also sketches and letters, including ones written from Diana to David Sassoon, one of her longest-serving designers, who crafted the going away outfit for her wedding day. Victoria Murphy, Town & Country, "Inside the Archive That Houses 500 Years of Royal Family Fashion," 17 Feb. 2019 In addition to the LWCF and the Nordic Museum’s designation, many of the measures would affect Washington state, including legislative language that would: Prevent new mining activities on some 340,000 acres of federal land in the Methow Valley. Evan Bush, The Seattle Times, "Here’s what the massive public-lands bill means for conservation, climate change in Washington state," 12 Feb. 2019

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

8 Mar 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 How to pronounce addition (audio) \

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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