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bicentennial

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ˌbaɪsɛnˈtɛnɪəl/US:USA pronunciation: IPA and respellingUSA pronunciation: IPA/ˌbaɪsɛnˈtɛniəl/ ,USA pronunciation: respelling(bī′sen ten′ē əl)


WordReference Random House Learner's Dictionary of American English © 2026
bi•cen•ten•ni•al /ˌbaɪsɛnˈtɛniəl/USA pronunciation   adj. [before a noun]
  1. relating to or in honor of a 200th anniversary.
  2. lasting 200 years.
  3. occurring every 200 years.

n. [countable]
  1. a 200th anniversary.
See -enn-.
WordReference Random House Unabridged Dictionary of American English © 2026
bi•cen•ten•ni•al  (bī′sen ten′ē əl),USA pronunciation adj. 
  1. pertaining to or in honor of a 200th anniversary:bicentennial celebration; a bicentennial exposition.
  2. consisting of or lasting 200 years:a bicentennial period.
  3. occurring every 200 years:the bicentennial return of a comet.

n. 
  1. a 200th anniversary:The United States had its bicentennial in 1976.
  2. a celebration of such an anniversary.
Also,[esp. Brit.,] bicentenary. 
  • bi-1 + centennial 1880–85
bi′cen•ten′ni•al•ly, adv. 
    See bi- 1.
'bicentennial' also found in these entries (note: many are not synonyms or translations):
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