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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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. 2022

How to use Ob in a sentence

John B. Stetson was born in 1830 in New Jersey, the son of a hat maker.
My Love Letter to the Stetson|Mark McKinnon|December 24, 2014|DAILY BEAST
And so the “Glo-o-o-o-o-o-o-o-ria” in this number earns it a spot on my list.
Yes, I Like Christmas Music. Stop Laughing.|Michael Tomasky|December 24, 2014|DAILY BEAST
Just another example of a guy in a John B. Stetson hat saving the day.
My Love Letter to the Stetson|Mark McKinnon|December 24, 2014|DAILY BEAST
Liz G., one half of “Publizity” [the other half of which, Liz B, is played by Jenny Slate] is one of the best on the show.
The Zany Shades of Nick Kroll|Abby Haglage|December 15, 2014|DAILY BEAST

Army B-squad players who fail to make it onto the varsity team after a year or two usually quit football.
A West Point MVP Who Never Played a Down|Nicolaus Mills|December 13, 2014|DAILY BEAST
Frequently they are found in alveolar arrangement, retaining the original outline of the alveoli of the lung (Fig. 4, b).
A Manual of Clinical Diagnosis|James Campbell Todd
Sleek finds it far harder work than fortune-making; but he pursues his Will-o'-the-Wisp with untiring energy.
The Pit Town Coronet, Volume I (of 3)|Charles James Wills
A was an Archer, who shot at a frog; B was a Butcher, and had a great dog.
Boys and Girls Bookshelf; a Practical Plan of Character Building, Volume I (of 17)|Various
O death, how bitter is the remembrance of thee to a man that hath peace in his possessions!
The Bible, Douay-Rheims Version|Various
D'o l'on peut aussy veoir, quelle esperance il y a de planter une belle chrestient par tels evangelistes.
The Jesuit Relations and Allied Documents, Vol. II: Acadia, 1612-1614|Various

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

Medical definitions for Ob

abbr.

obstetrics