И.О.

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See also: и.о.

Russian[edit]

Alternative forms[edit]

Adjective[edit]

И.О. (I.O.) (indeclinable)

  1. initialism of исполня́ющий обя́занности (ispolnjájuščij objázannosti): acting (temporarily assuming the duties or authority of another person when they are unable to do their job)