Ob

[ awb, ob; Russian awp ]

noun
  1. a river in the W Russian Federation in Asia, flowing NW to the Gulf of Ob. 2,500 miles (4,025 km) long.

  2. Gulf of, an inlet of the Arctic Ocean. About 500 miles (800 km) long.

Other definitions for OB (2 of 7)

OB

abbreviation
  1. Also ob Medicine/Medical.

  2. off Broadway.

  1. opening of books.

  2. ordered back.

Other definitions for ob- (3 of 7)

ob-

  1. a prefix meaning “toward,” “to,” “on,” “over,” “against,” originally occurring in loanwords from Latin, but now used also, with the sense of “reversely,” “inversely,” to form New Latin and English scientific terms: object; obligate; oblanceolate.

Origin of ob-

3
Middle English (from Old French ) from Latin, representing ob (preposition); in some scientific terms, from New Latin, Latin ob- (prefix)

Other definitions for ob. (4 of 7)

ob.1

abbreviation
  1. he died; she died.

Origin of ob.

4
From the Latin word obiit

Other definitions for ob. (5 of 7)

ob.2

abbreviation
  1. incidentally.

Origin of ob.

5
From the Latin word obiter

Other definitions for ob. (6 of 7)

ob.3

abbreviation
  1. oboe.

  2. Meteorology. observation.

Other definitions for O.B. (7 of 7)

O.B.

abbreviation
  1. opening of books.

  2. ordered back.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use Ob in a sentence

  • I gib ten dollars toward de stated preaching Ob de Gospel de fus' year, and de peepil all call me Brudder Dickson.

  • Yis, all alone, sept de two tousand Caffres Ob de kraal; but dey is nobody—only black beasts.

    Hunting the Lions | R.M. Ballantyne
  • I'se gwine to Branchville whar my dahter, Juno Soo, is a dyin' Ob fever.

    A Lost Hero | Elizabeth Stuart Phelps Ward and Herbert D. Ward
  • Dat ar train don' know hit, an' she'll go to Day Ob Jedgment, an' ebery soul aboard Ob her!

    A Lost Hero | Elizabeth Stuart Phelps Ward and Herbert D. Ward
  • Yo warnt one Ob de oberflowin kind, Miss Annie, admitted the old black woman.

British Dictionary definitions for Ob (1 of 4)

Ob

/ (Russian ɔpj) /


noun
  1. a river in N central Russia, formed at Bisk by the confluence of the Biya and Katun Rivers and flowing generally north to the Gulf of Ob (an inlet of the Arctic Ocean): one of the largest rivers in the world, with a drainage basin of about 2 930 000 sq km (1 131 000 sq miles). Length: 3682 km (2287 miles)

British Dictionary definitions for OB (2 of 4)

OB

abbreviation forBritish
  1. Old Boy

  2. outside broadcast

British Dictionary definitions for ob- (3 of 4)

ob-

prefix
  1. inverse or inversely: obovate

Origin of ob-

3
from Old French, from Latin ob. In compound words of Latin origin, ob- (and oc-, of-, op-) indicates: to, towards (object); against (oppose); away from (obsolete); before (obstetric); down, over (obtect); for the sake of (obsecrate); and is used as an intensifier (oblong)

British Dictionary definitions for ob. (4 of 4)

ob.

abbreviation for
  1. (on tombstones) obiit

  2. obiter

  1. oboe

Origin of ob.

4
(for sense 1) Latin: he (or she) died; (for sense 2) Latin: incidentally; in passing

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