[1] : The Collaborative International Dictionary of English v.0.48

though \though\, adv.
   however; nevertheless; notwithstanding; -- used in familiar
   language, and in the middle or at the end of a sentence.
   1913 webster

         i would not be as sick though for his place. --shak.
   1913 webster

         a good cause would do well, though.      --dryden.
   1913 webster

[2] : The Collaborative International Dictionary of English v.0.48

though \though\ th=o, conj. oe. thogh, thornah, as.
   ethe'ah, eth=aeh, eth=eh; akin to os. th=oh,
   ofries. thach, d.  g. doch but, yet, ohg. doh but, yet
   though, icel. thorn=o yet, nevertheless, sw. dock, dan.
   dog, goth. thorn'auh, thorn'au, than, or, yet; of
   uncertain origin. root184.
   granting, admitting, or supposing that; notwithstanding that;
   if.
   1913 webster

         though he slay me, yet will i trust in him. --job xiii.
                                                  15.
   1913 webster

         not that i so affirm, though so it seem. --milton.
   1913 webster

   note: it is compounded with all in although. see although.
         1913 webster

   as though, as if.
      1913 webster

            in the vine were three branches; and it was as
            though it budded.                     --gen. xl. 10.
      1913 webster
see also:
although as though 

[3] : WordNet (r) 2.0

though
     adv 1: despite the fact that; "even though she knew the answer, she
            did not respond" syn: although, tho'
     2: postpositive however; "it might be unpleasant, though"
see also:
although tho' 

[4] : Moby Thesaurus II by Grady Ward, 1.0

28 moby thesaurus words for "though":
   admitting that, after all, again, albeit, all the same,
   allowing that, although, at all events, at any rate, but, even,
   even so, for all that, granted, howbeit, however, in any case,
   in any event, just the same, nevertheless, nonetheless,
   notwithstanding, rather, still, supposing, when, while, yet

Though >> T Words
Though, definition of term: Though
though_pag1.html

Even Though >> E Words
Even Though, definition of term: Even Though
even+though_pag1.html

Abstract Though >> A Words
Abstract Though, definition of term: Abstract Though
abstract+though_pag1.html