The Collaborative International Dictionary of English v.0.48:

See \See\ (s[=e]), v. t. [imp. Saw (s[add]); p. p. Seen
   (s[=e]n); p. pr. & vb. n. Seeing.] [OE. seen, sen, seon,
   AS. se['o]n; akin to OFries. s[imac]a, D. zien, OS. & OHG.
   sehan, G. sehen, Icel. sj[=a], Sw. se, Dan. see, Goth.
   sa['i]hwan, and probably to L. sequi to follow (and so
   originally meaning, to follow with the eyes). Gr. "e`pesqai,
   Skr. sac. Cf. Sight, Sue to follow.]
   1. To perceive by the eye; to have knowledge of the existence
      and apparent qualities of by the organs of sight; to
      behold; to descry; to view.
      [1913 Webster]

            I will now turn aside, and see this great sight.
                                                  --Ex. iii. 3.
      [1913 Webster]

   2. To perceive by mental vision; to form an idea or
      conception of; to note with the mind; to observe; to
      discern; to distinguish; to understand; to comprehend; to
      ascertain.
      [1913 Webster]

            Go, I pray thee, see whether it be well with thy
            brethren.                             --Gen. xxxvii.
                                                  14.
      [1913 Webster]

            Jesus saw that he answered discreetly. --Mark xii.
                                                  34.
      [1913 Webster]

            Who's so gross
            That seeth not this palpable device?  --Shak.
      [1913 Webster]

   3. To follow with the eyes, or as with the eyes; to watch; to
      regard attentively; to look after. --Shak.
      [1913 Webster]

            I had a mind to see him out, and therefore did not
            care for contradicting him.           --Addison.
      [1913 Webster]

   4. To have an interview with; especially, to make a call
      upon; to visit; as, to go to see a friend.
      [1913 Webster]

            And Samuel came no more to see Saul until the day of
            his death.                            --1 Sam. xv.
                                                  35.
      [1913 Webster]

   5. To fall in with; to meet or associate with; to have
      intercourse or communication with; hence, to have
      knowledge or experience of; as, to see military service.
      [1913 Webster]

            Make us glad according to the days wherein thou hast
            afflicted us, and the years wherein we have seen
            evil.                                 --Ps. xc. 15.
      [1913 Webster]

            Verily, verily, I say unto you, if a man keep my
            saying, he shall never see death.     --John viii.
                                                  51.
      [1913 Webster]

            Improvement in wisdom and prudence by seeing men.
                                                  --Locke.
      [1913 Webster]

   6. To accompany in person; to escort; to wait upon; as, to
      see one home; to see one aboard the cars.
      [1913 Webster]

   7. In poker and similar games at cards, to meet (a bet), or
      to equal the bet of (a player), by staking the same sum.
      "I'll see you and raise you ten."
      [Webster 1913 Suppl. +PJC]

   God you see (or God him see or God me see, etc.), God
      keep you (him, me, etc.) in his sight; God protect you.
      [Obs.] --Chaucer.

   To see (anything) out, to see (it) to the end; to be
      present at, work at, or attend, to the end.

   To see stars, to see flashes of light, like stars; --
      sometimes the result of concussion of the head. [Colloq.]


   To see (one) through, to help, watch, or guard (one) to the
      end of a course or an undertaking.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Seeing \See"ing\, conj. (but originally a present participle).
   In view of the fact (that); considering; taking into account
   (that); insmuch as; since; because; -- followed by a
   dependent clause; as, he did well, seeing that he was so
   young.
   [1913 Webster]

         Wherefore come ye to me, seeing ye hate me? --Gen.
                                                  xxvi. 27.
   [1913 Webster]

WordNet (r) 3.0 (2006):

seeing
    adj 1: having vision, not blind
    n 1: perception by means of the eyes [syn: visual perception,
         beholding, seeing]
    2: normal use of the faculty of vision [syn: eyesight,
       seeing, sightedness]