addition

noun ad·di·tion \ ə-ˈdi-shən , a- \

|Updated on: 14 Jun 2018

Examples: addition in a Sentence

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

: ²besides, also

The job requires a college degree and, in addition, at least two years of experience.

— in addition to

: combined or associated with : ¹besides 2

In addition to soup, several salads were served.

See addition defined for English-language learners

See addition defined for kids

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

In addition, the school’s drama department director, Melody Herzfeld, who was honored with the excellence in theater education award, gave a speech that also elicited raucous applause.

— allyson chiu, Washington Post, "Tony Awards: Parkland students’ emotional performance brings audience to its feet," 11 June 2018
In addition to claiming that the documents are fake, Carter said that two FBI agents should have known the documents were fake and used to cover up fraud by PNC executives and bank officials.

— sarah brookbank, Cincinnati.com, "Jailed ex-Dynus owner Orlando Carter seeks $500M in damages from John Boehner, PNC, others," 11 June 2018
In addition, stars Tony Shalhoub, Katrina Lenk and Ari'el Stachel were recognized in their respective categories.

— evan real, The Hollywood Reporter, "Tonys: 'The Band's Visit' Wins Best Musical," 11 June 2018
In addition she has been appointed to numerous committees and task forces.

— The Aegis, "Mary Hastler, Harford Library CEO, receives state group's Outstanding Member award," 11 June 2018
In addition, dads can order the specials: a softshell crab sandwich ($19) or a ribeye steak ($34).

— anna muckerman, baltimoresun.com, "Father's Day dining specials on the menu in the Baltimore area," 11 June 2018
Whatever the cause, these mysterious deaths will have a big impact on the southern African landscape, as in addition to shade, the tree’s bark, roots, seeds, and fruit are key food sources for many animals.

— elizabeth pennisi, Science | AAAS, "Africa’s strangest trees are stranger than thought—and they’re dying mysteriously," 11 June 2018
In addition, exclusive liner notes written by director Jordan Peele will be included inside the jacket of the vinyl and will detail his decision to work with Abels for the score.

— carl lamarre, Billboard, "'Get Out' Movie Soundtrack Will Be Released on Vinyl June 15," 11 June 2018
In addition, the suit charges records were withheld from Dominic Giuffre and his family members.

— cary spivak, Milwaukee Journal Sentinel, "Giuffre brothers engaged in bitter court fight over future of their business empire," 11 June 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.

Origin and Etymology of 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

NEW! Time Traveler

First Known Use: 14th century

in the meaning defined at sense 1

See Words from the same year

addition Synonyms

Other Building Terms

batten, cistern, hearth, lath, transom, wainscot

ADDITION Defined for English Language Learners

addition

noun

Definition of addition for English Language Learners

: 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