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odd

[od] /ɒd/
adjective, odder, oddest.
1.
differing in nature from what is ordinary, usual, or expected:
an odd choice.
2.
singular or peculiar in a strange or eccentric way:
an odd person; odd manners.
3.
fantastic; bizarre:
Her taste in clothing was rather odd.
4.
leaving a remainder of 1 when divided by 2, as a number (opposed to even):
Numbers like 3, 15, and 181 are odd numbers.
5.
more or less, especially a little more (used in combination with a round number):
I owe three hundred-odd dollars.
6.
being a small amount in addition to what is counted or specified:
I have five gross and a few odd dozens.
7.
being part of a pair, set, or series of which the rest is lacking:
an odd glove.
8.
remaining after all others are paired, grouped, or divided into equal numbers or parts:
Everybody gets two hamburgers and I get the odd one.
9.
left over after all others are used, consumed, etc.
10.
(of a pair) not matching:
Do you know you're wearing an odd pair of socks?
11.
not forming part of any particular group, set, or class:
to pick up odd bits of information.
12.
not regular, usual, or full-time; occasional; casual:
odd jobs.
13.
out-of-the-way; secluded:
a tour to the odd parts of the Far East.
14.
Mathematics. (of a function) having a sign that changes when the sign of each independent variable is changed at the same time.
noun
15.
something that is odd.
16.
Golf.
  1. a stroke more than the opponent has played.
  2. British. a stroke taken from a player's total score for a hole in order to give him or her odds.
Origin
1300-1350
1300-50; Middle English odde < Old Norse oddi odd (number)
Related forms
oddly, adverb
oddness, noun
Can be confused
ad, add, odd.
Synonyms
1. extraordinary, unusual, rare, uncommon. See strange.
Antonyms
1. ordinary, usual, common.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for odder

odd

/ɒd/
adjective
1.
unusual or peculiar in appearance, character, etc
2.
occasional, incidental, or random: odd jobs
3.
leftover or additional: odd bits of wool
4.
  1. not divisible by two
  2. represented or indicated by a number that is not divisible by two: graphs are on odd pages Compare even1 (sense 7)
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) (of a function) changing sign but not absolute value when the sign of the independent variable is changed, as in y=x³ See even1 (sense 13)
9.
odd man out, a person or thing excluded from others forming a group, unit, etc
noun
10.
(golf)
  1. one stroke more than the score of one's opponent
  2. 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
See also odds
Derived Forms
oddly, adverb
oddness, noun
Word Origin
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 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for odder

odd

adj.

c.1300, "constituting a unit in excess of an even number," from Old Norse oddi "third or additional number," as in odda-maðr "third man, odd man (who gives the casting vote)," odda-tala "odd number." The literal meaning of Old Norse oddi is "point of land, angle" (related via notion of "triangle" to oddr "point of a weapon"); from Proto-Germanic *uzdaz "pointed upward" (cf. Old English ord "point of a weapon, spear, source, beginning," Old Frisian ord "point, place," Dutch oord "place, region," Old High German ort "point, angle," German Ort "place"), from PIE *uzdho- (cf. Lithuanian us-nis "thistle"). None of the other languages, however, shows the Old Norse 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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odder in Science
odd
  (ŏd)   
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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