adjective, odder, oddest.
differing in nature from what is ordinary, usual, or expected: an odd choice.
singular or peculiar in a strange or eccentric way: an odd person; odd manners.
fantastic; bizarre: Her taste in clothing was rather odd.
leaving a remainder of 1 when divided by 2, as a number (opposed to even ): Numbers like 3, 15, and 181 are odd numbers.
more or less, especially a little more (used in combination with a round number): I owe three hundred-odd dollars.
being a small amount in addition to what is counted or specified: I have five gross and a few odd dozens.
being part of a pair, set, or series of which the rest is lacking: an odd glove.
remaining after all others are paired, grouped, or divided into equal numbers or parts: Everybody gets two hamburgers and I get the odd one.
left over after all others are used, consumed, etc.
(of a pair) not matching: Do you know you're wearing an odd pair of socks?
not forming part of any particular group, set, or class: to pick up odd bits of information.
not regular, usual, or full-time; occasional; casual: odd jobs.
out-of-the-way; secluded: a tour to the odd parts of the Far East.
Mathematics. (of a function) having a sign that changes when the sign of each independent variable is changed at the same time.
something that is odd.
a stroke more than the opponent has played.
British. a stroke taken from a player's total score for a hole in order to give him or her odds.

1300–50; Middle English odde < Old Norse oddi odd (number)

oddly, adverb
oddness, noun

ad, add, odd.

1. extraordinary, unusual, rare, uncommon. See strange.

1. ordinary, usual, common.
Dictionary.com Unabridged


noun, plural ODs or OD's.
an overdose of a drug, especially a fatal one.
a person who has taken an overdose of a drug, especially one who has become seriously ill or has died from such an overdose.
verb (used without object), OD'd or ODed or OD'ed, OD'ing or ODing.
to take an overdose of a drug.
to die from an an overdose of a drug.
to have or experience an excessive amount or degree of something.


Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To odd
World English Dictionary
od, odyl or odyle (ɒd, əʊd, ˈɒdɪl)
archaic a hypothetical force formerly thought to be responsible for many natural phenomena, such as magnetism, light, and hypnotism
[C19: coined arbitrarily by Baron Karl von Reichenbach (1788--1869), German scientist]
odyl, odyl or odyle
[C19: coined arbitrarily by Baron Karl von Reichenbach (1788--1869), German scientist]
odyle, odyl or odyle
[C19: coined arbitrarily by Baron Karl von Reichenbach (1788--1869), German scientist]
'odic, odyl or odyle

Od, 'Od or Odd (ɒd)
euphemistic (used in mild oaths) an archaic word for God
'Od, 'Od or Odd
Odd, 'Od or Odd

OD1 (ˌəʊˈdiː)
1.  an overdose of a drug
vb , OD's, OD'ing, OD'd
2.  (intr) to take an overdose of a drug
[C20: from o(ver)d(ose)]

abbreviation for
1.  Officer of the Day
2.  Old Dutch
3.  ordnance datum
4.  outside diameter
5.  military Also: o.d. olive drab
6.  banking Also: O/D
 a.  on demand
 b.  overdraft
 c.  overdrawn

odd (ɒd)
1.  unusual or peculiar in appearance, character, etc
2.  occasional, incidental, or random: odd jobs
3.  leftover or additional: odd bits of wool
4.  a.  not divisible by two
 b.  Compare even represented or indicated by a number that is not divisible by two: graphs are on odd pages
5.  being part of a matched pair or set when the other or others are missing: an odd sock; odd volumes
6.  (in combination) used to designate an indefinite quantity more than the quantity specified in round numbers: fifty-odd pounds
7.  out-of-the-way or secluded: odd corners
8.  maths See even (of a function) changing sign but not absolute value when the sign of the independent variable is changed, as in y=x³
9.  odd man out a person or thing excluded from others forming a group, unit, etc
10.  golf
 a.  one stroke more than the score of one's opponent
 b.  an advantage or handicap of one stroke added to or taken away from a player's score
11.  a thing or person that is odd in sequence or number
[C14: odde: from Old Norse oddi point, angle, triangle, third or odd number. Compare Old Norse oddr point, spot, place; Old English ord point, beginning]

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

c.1300, "constituting a unit in excess of an even number," from O.N. oddi "third or additional number," as in odda-maðr "third man, odd man (who gives the casting vote)," odda-tala "odd number." O.N. oddi means lit. "point, angle;" related via notion of "triangle" to oddr "point of a weapon," from
P.Gmc. *uzdaz "pointed upward" (cf. O.E. ord "point of a weapon, spear, source, beginning," O.Fris. ord "point, place," Du. oord "place, region," O.H.G. ort "point," Ger. Ort "place"), from PIE *uzdho- (cf. Lith. us-nis "thistle"). None of the other languages, however, shows the O.N. development from "point" to "third number." Used from late 14c. to indicate a surplus over any given sum. Sense of "strange, peculiar" first attested 1580s from notion of "odd one out, unpaired one of three" (attested earlier, c.1400, as "singular" in a positive sense of "renowned, rare, choice"). Odd job (c.1770) is so called from notion of "not regular." Odd lot "incomplete or random set" is from 1897. The international order of Odd Fellows began as local social clubs in England, late 18c., with Masonic-type trappings; formally organized 1813 in Manchester.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

OD or O.D.

  1. Doctor of Optometry

  2. Latin oculus dexter (right eye)

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
odd   (ŏd)  Pronunciation Key 
Divisible by 2 with a remainder of 1, such as 17 or -103.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Abbreviations & Acronyms
  1. Doctor of Optometry

  2. officer of the day

  3. overdose

  4. overdraft

  5. overdrawn

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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Example sentences
That's an odd take of tax payments, one that reverses the order of transfer.
Ever since then, the reason for the city's odd end has been a puzzle for
What's really odd is how mellow and delicious this sweet cheese is in meat
Horseshoe crabs were misnamed centuries ago, when mariners thought the odd
  creatures' sloped shells resembled horse's feet.
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