The Collaborative International Dictionary of English v.0.48:

Odd \Odd\ ([o^]d), a. [Compar. Odder ([o^]d"[~e]r); superl.
   Oddest.] [OE. odde, fr. Icel. oddi a tongue of land, a
   triangle, an odd number (from the third or odd angle, or
   point, of a triangle), orig., a point, tip; akin to Icel.
   oddr point, point of a weapon, Sw. udda odd, udd point, Dan.
   od, AS. ord, OHG. ort, G. ort place (cf. E. point, for change
   of meaning).]
   1. Not paired with another, or remaining over after a
      pairing; without a mate; unmatched; single; as, an odd
      shoe; an odd glove.
      [1913 Webster]

   2. Not divisible by 2 without a remainder; not capable of
      being evenly paired, one unit with another; as, 1, 3, 7,
      9, 11, etc., are odd numbers.
      [1913 Webster]

            I hope good luck lies in odd numbers. --Shak.
      [1913 Webster]

   3. Left over after a definite round number has been taken or
      mentioned; indefinitely, but not greatly, exceeding a
      specified number; extra.
      [1913 Webster]

            Sixteen hundred and odd years after the earth was
            made, it was destroyed in a deluge.   --T. Burnet.
      [1913 Webster]

            There are yet missing of your company
            Some few odd lads that you remember not. --Shak.
      [1913 Webster]

   4. Remaining over; unconnected; detached; fragmentary; hence,
      occasional; inconsiderable; as, odd jobs; odd minutes; odd
      trifles.
      [1913 Webster]

   5. Different from what is usual or common; unusual; singular;
      peculiar; unique; strange. "An odd action." --Shak. "An
      odd expression." --Thackeray.

   Syn: extraordinary; queer.
        [1913 Webster]

              The odd man, to perform all things perfectly, is,
              in my poor opinion, Joannes Sturmius. --Ascham.
        [1913 Webster]

              Patients have sometimes coveted odd things.
                                                  --Arbuthnot.
        [1913 Webster]

              Locke's Essay would be a very odd book for a man
              to make himself master of, who would get a
              reputation by critical writings.    --Spectator.
        [1913 Webster]

   Syn: Quaint; unmatched; singular; unusual; extraordinary;
        strange; queer; eccentric; whimsical; fantastical;
        droll; comical. See Quaint.
        [1913 Webster]

WordNet (r) 3.0 (2006):

odd
    adj 1: not divisible by two [syn: odd, uneven] [ant: even]
    2: not easily explained; "it is odd that his name is never
       mentioned"
    3: an indefinite quantity more than that specified; "invited
       30-odd guests"
    4: beyond or deviating from the usual or expected; "a curious
       hybrid accent"; "her speech has a funny twang"; "they have
       some funny ideas about war"; "had an odd name"; "the peculiar
       aromatic odor of cloves"; "something definitely queer about
       this town"; "what a rum fellow"; "singular behavior" [syn:
       curious, funny, odd, peculiar, queer, rum,
       rummy, singular]
    5: of the remaining member of a pair, of socks e.g. [syn: odd,
       unmatched, unmated, unpaired]
    6: not used up; "leftover meatloaf"; "she had a little money
       left over so she went to a movie"; "some odd dollars left";
       "saved the remaining sandwiches for supper"; "unexpended
       provisions" [syn: leftover, left over(p), left(p),
       odd, remaining, unexpended]

Moby Thesaurus II by Grady Ward, 1.0:

204 Moby Thesaurus words for "odd":
   abnormal, absolute, absurd, algorismic, algorithmic, aliquot,
   alone, anomalous, asymmetric, azygous, bereft of reason, brainsick,
   cardinal, casual, celibate, chance, contingent, contrasting,
   counter, crackbrained, cracked, crank, crankish, cranky, crazed,
   crazy, crotchety, curious, daft, decimal, deluded, demented,
   deprived of reason, deranged, deviant, deviative, different,
   differential, digital, disoriented, disparate, disproportionate,
   dissimilar, distraught, divergent, diverse, dotty, eccentric,
   erratic, even, exceptional, exponential, extra, fey, figural,
   figurate, figurative, finite, first and last, flaky, flighty,
   fluky, fortuitous, fractional, freaked out, freakish, freaky,
   funny, hallucinated, hardly like, idiocratic, idiosyncratic,
   ill-matched, ill-sorted, imaginary, impair, impossible, inadequate,
   incidental, infinite, insane, insufficient, integral, irrational,
   irregular, kinky, kooky, left, leftover, loco, logarithmic,
   logometric, lone, lunatic, mad, maddened, maggoty, manic, mazed,
   mental, mentally deficient, meshuggah, mismatched, moon-struck,
   negative, net, non compos, non compos mentis, nonuniform,
   not all there, not right, numeral, numerary, numerative, numeric,
   nutty, occasional, oddball, of unsound mind, off, off the wall,
   offbeat, one and only, only, only-begotten, ordinal, out,
   out of proportion, out-of-the-way, outlandish, outstanding, over,
   pair, part-time, passing strange, peculiar, positive, possible,
   prime, psycho, quaint, queer, quirky, radical, rational, real,
   reasonless, reciprocal, remaining, remanent, scarcely like,
   screwball, screwy, senseless, sick, side, single, singular, skew,
   skewed, sole, spare, stark-mad, stark-staring mad, strange,
   submultiple, superfluous, surd, surplus, surviving, tetched,
   to spare, touched, transcendental, twisted, unalike, unbalanced,
   unconsumed, unconventional, unearthly, unequal, uneven, unhinged,
   unidentical, unique, unlike, unmatched, unnatural, unpaired,
   unrepeated, unresembling, unsame, unsane, unsettled, unsimilar,
   unsound, unused, unusual, wacky, wandering, weird, whimsical,
   witless, wondrous strange



V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

ODD
       Operator Distance-Dialing