ex officio

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ˈɛks əˈfɪʃɪəʊ/, /ˈɛks əˈfɪsɪəʊ/

US:USA pronunciation: respellingUSA pronunciation: respelling(eks′ ə fish′ē ō′)



WordReference Random House Unabridged Dictionary of American English © 2026
ex of•fi•ci•o  (eks′ ə fish′ē ō′),USA pronunciation 
  1. Foreign Termsby virtue of office or official position.
  • Latin
  • 1525–35
ex′-of•fi′ci•o′, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::
ex officio /ˈɛks əˈfɪʃɪəʊ; əˈfɪsɪəʊ/ adv , adj
  1. by right of position or office
Etymology: Latin
'ex officio' also found in these entries (note: many are not synonyms or translations):
justice of the peace - ordinary - EO - ex off.

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