Ob

[ awb, ob; Russian awp ]

/ ɔb, ɒb; Russian ɔp /

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noun

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

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

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Question 1 of 7

Which sentence is correct?

His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

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Other definitions for Ob (2 of 7)

abbreviation

Also ob Medicine/Medical.

off Broadway.

opening of books.

ordered back.

Other definitions for Ob (3 of 7)

ob-

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.

Also o- oc-, of-, op-.

Origin of ob-

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

he died; she died.

Origin of ob.

From the Latin word obiit

Other definitions for Ob (5 of 7)

ob.²

abbreviation

incidentally.

Origin of ob.

From the Latin word obiter

Other definitions for Ob (6 of 7)

ob.³

abbreviation

oboe.

Meteorology. observation.

Other definitions for Ob (7 of 7)

O.B.

or O/B.

abbreviation

opening of books.

ordered back.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use Ob in a sentence

Conrad was at the ob-gyn to check to see if, as the Maryland resident likes to put it, “My cervix is trying to kill me.”
Coming Out Kinky to Your Doctor, in Black and Blue|Heather Boerner|October 25, 2014|DAILY BEAST
The website is run by Joe Alton, a retired OB-GYN and fellow at the American College of Surgeons, and his wife, Amy, a nurse.
Apocalypse Now: Preppers Are Gearing Up for Ebola|Nina Strochlic|October 17, 2014|DAILY BEAST
As a result, nearly a quarter of U.S. ob-gyn clerkships do not include abortion training.
The Internet’s First Abortion Class|Samantha Allen|October 6, 2014|DAILY BEAST
At the time of her arrival in 2011, many of the facilities in Liberia lacked even a single midwife, let alone trained OB/GYNs.
The Only Thing More Terrifying Than Ebola Is Being Pregnant With Ebola|Kent Sepkowitz, Abby Haglage|October 2, 2014|DAILY BEAST

Like his father Ron, Sen. Paul is a doctor—the older Paul is an OB/GYN, the younger an ophthalmologist.
Rand Paul and the Certification Racket|Russell Saunders|August 11, 2014|DAILY BEAST
I gib ten dollars toward de stated preaching ob de Gospel de fus' year, and de peepil all call me Brudder Dickson.
The Book of Anecdotes and Budget of Fun;|Various
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.
The Girls of Central High on the Stage|Gertrude W. Morrison

British Dictionary definitions for Ob (1 of 4)

/ (Russian ɔpj) /

noun

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)

abbreviation for British

Old Boy

outside broadcast

British Dictionary definitions for Ob (3 of 4)

ob-

prefix

inverse or inverselyobovate

Word Origin for ob-

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

(on tombstones) obiit

obiter

oboe

Word Origin for ob.

(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