[ uh-fish-ee-eyt ]
/ əˈfɪʃ iˌeɪt /
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See synonyms for: officiate / officiated on Thesaurus.com

verb (used without object), of·fi·ci·at·ed, of·fi·ci·at·ing.
to perform the office of a member of the clergy, as at a divine service.
to perform the duties or function of some office or position.
to serve as referee, umpire, or other official in a sports contest or game.
verb (used with object), of·fi·ci·at·ed, of·fi·ci·at·ing.
to serve as the priest or minister of (a divine service, religious ceremony, etc.).
to perform, carry out, or fulfill (an official duty or function).
to act as a referee, umpire, timekeeper, or other official for (a sports contest or game).
In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
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The rainy weather could not ________ my elated spirits on my graduation day.
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Origin of officiate

First recorded in 1625–35; from Medieval Latin officiātus (past participle of officiāre “to serve”), equivalent to Latin offici(um) “service, duty” + -ātus, past participle suffix; see office, -ate1


of·fi·ci·a·tion, nounof·fi·ci·a·tor, nounun·of·fi·ci·at·ed, adjectiveun·of·fi·ci·at·ing, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use officiate in a sentence

British Dictionary definitions for officiate

/ (əˈfɪʃɪˌeɪt) /

verb (intr)
to hold the position, responsibility, or function of an official
to conduct a religious or other ceremony

Derived forms of officiate

officiation, nounofficiator, noun

Word Origin for officiate

C17: from Medieval Latin officiāre, from Latin officium; see office
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012