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
The three free-agent additions came in a flurry Wednesday after the Lakers pulled off an aggressive trade for center Walker Kessler.
—
Los Angeles Times,
4 July 2026
California Poppy Available in tangerine orange, vibrant red, soft pink, and many other lively hues, the California poppy (Eschscholzia californica) is a worthy addition to any garden.
—
Melissa Epifano,
The Spruce,
3 July 2026
Add sugar mixture, 1/4 cup at a time, beating well after each addition.
—
Better Homes & Gardens,
3 July 2026
Mauricio Umansky, Richards' estranged husband, is just as excited for the family's new addition.
—
Kayla Grant,
PEOPLE,
3 July 2026
See All Example Sentences for addition
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Los Angeles Times,
4 July 2026
California Poppy Available in tangerine orange, vibrant red, soft pink, and many other lively hues, the California poppy (Eschscholzia californica) is a worthy addition to any garden.
—
Melissa Epifano,
The Spruce,
3 July 2026
Add sugar mixture, 1/4 cup at a time, beating well after each addition.
—
Better Homes & Gardens,
3 July 2026
Mauricio Umansky, Richards' estranged husband, is just as excited for the family's new addition.
—
Kayla Grant,
PEOPLE,
3 July 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 5 Jul. 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)
Love words? Need even more definitions?
Merriam-Webster unabridged
