обо

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See also: обо-

Russian[edit]

Etymology[edit]

From Proto-Slavic *o(b), from Proto-Indo-European *h₃ebʰi.

Pronunciation[edit]

Preposition[edit]

обо (obo)

  1. (+ prepositional case): about, of, on
    обо мнеobo mneabout me
    обо всехobo vsexabout everybody
  2. (+ accusative case): against, upon
    обо что-нибудьobo što-nibudʹupon something

Usage notes[edit]

The form обо is used before мне, что (and compound words beginning with чтo); also along with о before inflected forms of все, всё, весь. In most cases, use о (o) or об (ob) instead.