Meaning

  1. (uncountable) The act of adding anything.
  2. (countable, uncountable) Anything that is added.
  3. (uncountable) The arithmetic operation of adding.
  4. (countable, uncountable) A dot at the right side of a note as an indication that its sound is to be lengthened one half.
  5. (countable, uncountable) A title annexed to a person's name to identify him or her more precisely.
  6. (countable, uncountable) Something added to a coat of arms, as a mark of honour.
  7. (countable, uncountable) an organic reaction where two or more molecules combine to form a larger one (the adduct).

Opposite of
abatement
Frequency

B2
Pronounced as (IPA)
/əˈdɪʃ.ən/
Etymology

In summary

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”).

Notes

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