addition
noun
ad·di·tion
ə-ˈdi-shən 
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
see also:
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
With the additions of Vanloo and New York native Aubrey Griffin, DeMarco had only nine players available.
—
Fiifi Frimpong, New York Daily News, 9 May 2026
In addition, many of San Diego’s trolley stops are in the South Bay and southeastern San Diego neighborhoods where the city has done significantly less upzoning in recent years — and where much of the land is zoned for single-family housing.
—David Garrick, San Diego Union-Tribune, 9 May 2026
In addition to playing its first home games of the season in Storrs and the upcoming schedule of matches in New Haven, the team has also continued to do community work in Bridgeport and runs a youth academy in Danbury.
—P.r. Lockhart, Hartford Courant, 9 May 2026
In addition to adult content creators, OnlyFans says those on its platform include including comedians, athletes, fashion designers, music artists and celebrities.
—Todd Spangler, Variety, 8 May 2026
See All Example Sentences for addition
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Fiifi Frimpong, New York Daily News, 9 May 2026
In addition, many of San Diego’s trolley stops are in the South Bay and southeastern San Diego neighborhoods where the city has done significantly less upzoning in recent years — and where much of the land is zoned for single-family housing.
—David Garrick, San Diego Union-Tribune, 9 May 2026
In addition to playing its first home games of the season in Storrs and the upcoming schedule of matches in New Haven, the team has also continued to do community work in Bridgeport and runs a youth academy in Danbury.
—P.r. Lockhart, Hartford Courant, 9 May 2026
In addition to adult content creators, OnlyFans says those on its platform include including comedians, athletes, fashion designers, music artists and celebrities.
—Todd Spangler, Variety, 8 May 2026
See All Example Sentences for addition
Cite this Entry
“Addition.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/addition. Accessed 9 May. 2026.
Copy CitationKids Definition
addition
noun
ad·di·tion
ə-ˈdish-ən
a-
1
: the result of adding : increase
2
: the act, process, or operation of adding
3
: a part added (as to a building)
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