[awr, ohr]
a long shaft with a broad blade at one end, used as a lever for rowing or otherwise propelling or steering a boat.
something resembling this or having a similar purpose.
a person who rows; oarsman.
verb (used with object)
to propel with or as if with oars; row.
to traverse or make (one's way) by, or as if by, rowing.
verb (used without object)
to row.
to move or advance as if by rowing.
put in one's oar, to meddle; interfere: He put in his oar and was told to mind his own business.
rest on one's oars, to cease to make an effort; relax after exertion; stop working after success or completing a task: Once he became president, he was content to rest on his oars.

before 900; Middle English ore, Old English ār; cognate with Old Norse ār

oarless, adjective
oarlike, adjective

oar, o'er, or, ore.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
oar (ɔː)
1.  a long shaft of wood for propelling a boat by rowing, having a broad blade that is dipped into and pulled against the water. Oars were also used for steering certain kinds of ancient sailing boats
2.  short for oarsman
3.  put one's oar in to interfere or interrupt
4.  to row or propel with or as if with oars: the two men were oaring their way across the lake
[Old English ār, of Germanic origin; related to Old Norse ār]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

O.E. ar (said to be from O.N. ar), from P.Gmc. *airo; perhaps rel. to L. remus "oar," Gk. eretes "rower," eretmos "oar."
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Abbreviations & Acronyms
[National Oceanic and Atmospheric Administration Office of] Oceanic and Atmospheric Research
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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American Heritage
Idioms & Phrases


see put one's oar in.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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Example sentences for oar
A sculling oar is shorter and has a smaller blade area than the equivalent sweep oar.
For example, a whip is used to indicate a horse and an oar symbolizes a boat.
Row boats or dinghies are oar powered, and generally restricted to protected waters.
Idioms & Phrases
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