Search Dictionary
Definition of addition

addition

/əˈdɪʃ.ən/
ad · di · tion
Adverb:additionally
•
Plural:additions
•
Adjective:additional
JUMP TO:

addition Lexical Profile

addition Game Scores & Validity

• noun

1

The action or process of adding something to something else.

Example

"The sauce was greatly improved by the addition of fresh herbs and garlic."

2

A person or thing added to a group, collection, or existing structure, such as a new room or wing built onto a building.

Example

"The new graphic designer is a welcome addition to our creative team."

3

The basic arithmetic operation of calculating the total of two or more numbers or amounts.

Example

"First-grade students spend significant time practicing basic addition and subtraction."

Synonyms
View all synonyms for addition
Antonyms
View all antonyms for addition

Word Nuance & Usage

Do not confuse 'addition' (something added or the process of adding) with the homophone 'edition' (a particular version or printing of a published text).

• Rhymes for addition

• Nearby Words

addictiveness
addie
addis ababa
addition
additional
additionally
additive

Word Origin & Etymology

Borrowed in the late 14th century from Old French 'adicion', from Latin 'additionem' (a noun of action from the past participle stem of 'addere', meaning 'to add to or join'), formed from 'ad-' ('to') and 'dare' ('to put or give').

Cite this Entry

Wordmom. (2026). Definition of Addition. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/addition
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Word Games & Solvers
Word FinderScrabble Word FinderWords With Friends CheatWordle SolverAnagram Solver
Dictionary & Reference
DictionarySynonymsAntonymsWords
Community
Contact UsEditorial PolicyPrivacy PolicyTerms and Conditions
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.