US /əˈdɪʃ.ən/
noun Freq #4966

Meanings

  1. 1
    noun

    the act of adding something to something else

    The addition of fresh herbs improved the dish.

  2. 2
    noun

    the process of adding numbers together

    The children are learning addition and subtraction.

  3. 3
    noun

    a person or thing that is added to something

    The new player is a valuable addition to the team.

Thesaurus

Synonyms
1 noun · the act of adding something... addinginclusion
2 noun · the process of adding... summationplus
3 noun · a person or thing that is... accessionadd-on
More supplement
Word family
Forms additions
Derived forms additionaladditionaryadditionistcoadditioncycloadditiondigitadditiongyroadditionheteroadditionisoadditionmisadditionnonadditionphotoaddition
Related forms addadderadditive

Etymology

Etymology tree Proto-Indo-European *h₂éd Proto-Italic *ad Proto-Italic *ad- Latin ad- Proto-Indo-European *dʰeh₁- Proto-Indo-European *dʰéh₁tder. Proto-Italic *-ðō Latin -dō Latin addō Latin additiōder. Old French aditionder. Middle English addicioun English addition Sense of “what is added” dates from 14th century, from Middle English addicioun, addition, from Old French adition, from Latin additiōnem, accusative singular of additiō, from addō (“add, put”).

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