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See also: altération



From Old French alteracion (French altération), from Medieval Latin alterātiō. Morphologically alter +‎ -ation


  • (UK) IPA(key): /ɒl.tə(ɹ)ˈeɪ.ʃən/
  • (US) IPA(key): /ɔl.tɚˈeɪ.ʃən/
  • (file)
  • Rhymes: -eɪʃən


alteration (countable and uncountable, plural alterations)

  1. The act of altering or making different.
    • 1594, Richard Hooker, Of the Laws of Ecclesiastical Polity:
      alteration, though it be from worse to better, hath in it inconveniences…
  2. The state of being altered; a change made in the form or nature of a thing; changed condition.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for “alteration” in
Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)


The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout § Translations.




alteration (plural alterationes)

  1. change, alteration