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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
in addition to
: combined or associated with : 1besides 2 In addition to soup, several salads were served.
From the M-W Editors
Examples of addition in a Sentence
The children learned addition and subtraction.
The museum's collection includes several new additions.
Recent Examples of addition from the Web
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In addition, international action has reduced al-Shabab’s profit from commodities such as charcoal.
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Facebook in April announced plans to integrate real-time suicide prevention tools into Facebook Live in addition to live-chat support from organizations such as the National Suicide Prevention Lifeline and the Crisis Text Line.
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In addition to paying a $3 million fine, the Justice Department stipulated that Hobby Lobby would forfeit the objects.
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In addition, Skoglund’s team got DNA data from 19 modern populations across Africa for comparison, including from large groups like the Bantu and smaller ones like the Khoe-San and the Hadza.
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Costs can vary widely across the country, so in addition to make, model and model year, the sites ask for your ZIP Code.
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In addition, he was named honorable mention All-North Coast Athletic Conference after hitting .333 with a .435 on-base percentage and a .430 slugging percentage in 37 games (all starts).
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While the federal government allows banks to work with cannabis businesses in states that have passed laws approving recreational marijuana, banks still have to file suspicious activities reports in addition to following standard banking guidelines.
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In addition, both the tropical and subtropical Atlantic waters are anomalously warm.
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.
Origin and Etymology of addition
addicion Anglo-French, from Latin addition-, additio, from addere —see add
ADDITION Defined for English Language Learners
addition
playDefinition of addition for English Language Learners
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: the act or process of joining something to something else : the act or process of adding something
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mathematics : the act or process of adding numbers
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: something or someone more that is included : something or someone that is added
ADDITION Defined for Kids
addition
playDefinition of addition for Students
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.
Learn More about addition
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See words that rhyme with addition Thesaurus: All synonyms and antonyms for addition Spanish Central: Translation of addition Nglish: Translation of addition for Spanish speakers Britannica English: Translation of addition for Arabic speakers Britannica.com: Encyclopedia article about addition
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