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Definitions

addition

[uh-dish-uhn] / əˈdɪʃ ən /
NOUN
process of conjoining, adding
Synonyms
STRONGEST
extension inclusion
STRONG
accession annexation attachment augmentation enlargement
WEAK
adding adjoining affixing increasing
Antonyms
STRONG
decrease
WEAK
deduction lessening loss reduction shrinkage subtraction withdrawal
NOUN
something conjoined to or enlargement of something
Synonyms
STRONGEST
bonus boost enhancement expansion extension supplement
STRONG
accession accessory accretion accrual addendum additive adjunct aggrandizement annex appendage appendix attachment augmentation commission dividend enlargement extra gain hike increase increment markup option profit raise reinforcement rise wing
Antonyms
STRONGEST
decrease
STRONG
decline drop fall lessening loss reduction shrinkage subtraction
WEAK
deduction withdrawal
NOUN
arithmetical process of augmentation
Synonyms
STRONG
accretion computing counting reckoning summation
WEAK
accruing adding enlarging expanding increasing summing tabulating totaling toting
Antonyms
WEAK
decrease deduction lessening loss reduction shrinkage subtraction withdrawal

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In addition to Gates’ bid, gadfly-turned-Councilmember Gracey Van Der Mark is seeking an Assembly seat.

From Los Angeles Times • Apr. 9, 2026

In addition, the bill mandates that states reduce their payment error rates — which measure the accuracy of eligibility and payment determinations — or face millions in penalties.

From Salon • Apr. 9, 2026

John: A second attempt at National glory for this guy, also trained by Elliott, who in addition to his two wins with Tiger Roll also triumphed in the race with Silver Birch in 2007.

From BBC • Apr. 9, 2026

In addition to her naturalness on-camera, Feltner explained, Folan just happened to be preternaturally good at the technical aspects of shooting a 30-minute show.

From The Wall Street Journal • Apr. 8, 2026

“He’s my favorite because in addition to being a writer, he was a spy.”

From "City Spies" by James Ponti