об

• IPA^(key): /ˈob/, [ˈo̞b]
• Hyphenation: об

From Proto-Permic *ob. Possibly related to Finnish umpi (“untouched snow”) and Northern Sami oppa (“closed”).

об • (ob)

1. snowbank

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

об • (ob)

1. paternal aunt

• тьӧт (ťöt)

• ичинь (ićiń, “maternal aunt”)

• A. I. Podorova, editor (1948), Коми-русский словарь [Komi-Russian dictionary], Syktyvkar: Коми Государственное Издательство, page 141
• Lytkin, V. I., Gulyaev, E. S., editors (1970), “об”, in Краткий этимологический словарь коми языка [Brief Etymological Dictionary of the Komi Language]‎^[1] (in Russian), Moscow: Nauka
• L. M. Beznosikova, E. A. Ajbabina, R. I. Kosnyreva (2000) Коми-русский словарь [Komi-Russian dictionary], →ISBN, page 447

об • (ob)

1. Alternative form of объ (obŭ)

• объ (ob) — Pre-reform orthography (1918)
• о (o) — usually before consonants
• обо (obo) — before some words such as мне (mne) or всём (vsjom)

Inherited from Proto-Slavic *o(b), from Proto-Balto-Slavic *ab, from Proto-Indo-European *h₃ebʰi.

• IPA^(key): [əb] (before a vowel or voiced consonant)
• IPA^(key): [ɐb] (before a stressed syllable beginning with a vowel or voiced consonant)
• IPA^(key): [ˈob] (when stressed and before a vowel or voiced consonant)

• Audio:

  (file)

• Note: The final [b] is pronounced as [p] when in isolation or before a voiceless consonant, both of which are generally uncommon.

об • (ob)

1. [with prepositional]
   1. about, of, on

      Я узна́л мно́го об икре́. ― Ja uznál mnógo ob ikré. ― I found out a lot about caviar.

2. [with accusative]
   1. against, upon

      опира́ться об окно́ ― opirátʹsja ob oknó ― to lean against the window

• The об (ob) form is usually unstressed. It is stressed in the idioms рука́ о́б ру́ку (ruká ób rúku), как о́б сте́ну горо́х (kak ób sténu goróx). It can be stressed or unstressed in the word combination о́б пол (ób pol) (об по́л (ob pól)).
• When governing the prepositional case, об (ob) is used before vowels, however о (o) is sometimes also used before the possessive pronoun их (ix).
• When governing the accusative case, об (ob) is used before vowels and variably before liquids in the written language, while in the colloquial language, об (ob) is used before all words.
• Although о (o) is prescribed before the possessive pronouns его́ (jevó) and её (jejó) (and other words beginning with е (je), ё (jo), ю (ju) and я (ja)), in colloquial usage об (ob) may be used.

• ов (ov), ав (av)

Inherited from Classical Persian آب (āb).

• IPA^(key): /ob/, [ʔɔb]

об • (ob) (Persian spelling آب)

1. water

•   об on the Tajik Wikipedia.Wikipedia ^tg
• “об”, in Вожаҷӯ / واژه‌جو [Vožajü] (in Tajik), 2024

From Proto-Slavic *ob

• IPA^(key): [ɔb]

об • (ob)

1. at (for indicating time in hours)

   об одина́дцятій годи́ні ― ob odynádcjatij hodýni ― at eleven o'clock

   об одина́дцятій ве́чора ― ob odynádcjatij véčora ― at eleven in the evening

   Synonym: о (o) (before a consonant)

The preposition об is only used if the following word begins with a vowel. If the following word begins with a consonant, preposition о is used instead. In Ukrainian, the only ordinal number beginning in a vowel between 1-24 is одинадцятий (odynadcjatyj, “eleventh”).

• Bilodid, I. K., editor (1970–1980), “об”, in Словник української мови: в 11 т. [Dictionary of the Ukrainian Language: in 11 vols] (in Ukrainian), Kyiv: Naukova Dumka
• “об”, in Kyiv Dictionary (in English)
• “об”, in Словник.ua [Slovnyk.ua] (in Ukrainian)