Source : Webster's Revised Unabridged Dictionary (1913)

Sit \Sit\, v. i. [imp. {Sat}({Sate}, archaic); p. p. {Sat}
   ({Sitten}, obs.); p. pr. & vb. n. {Sitting}.] [OE. sitten,
   AS. sittan; akin to OS. sittian, OFries. sitta, D. zitten, G.
   sitzen, OHG. sizzen, Icel. sitja, SW. sitta, Dan. sidde,
   Goth. sitan, Russ. sidiete, L. sedere, Gr. ???, Skr. sad.
   [root]154. Cf. {Assess},{Assize}, {Cathedral}, {Chair},
   {Dissident}, {Excise}, {Insidious}, {Possess}, {Reside},
   {Sanhedrim}, {Seance}, {Seat}, n., {Sedate}, {4th Sell},
   {Siege}, {Session}, {Set}, v. t., {Sizar}, {Size},
   {Subsidy}.]
   1. To rest upon the haunches, or the lower extremity of the
      trunk of the body; -- said of human beings, and sometimes
      of other animals; as, to sit on a sofa, on a chair, or on
      the ground.

            And he came and took the book put of the right hand
            of him that sate upon the seat.       --Bible (1551)
                                                  (Rev. v. 7.)

            I pray you, jest, sir, as you sit at dinner. --Shak.

   2. To perch; to rest with the feet drawn up, as birds do on a
      branch, pole, etc.

   3. To remain in a state of repose; to rest; to abide; to rest
      in any position or condition.

            And Moses said to . . . the children of Reuben,
            Shall your brothren go to war, and shall ye sit
            here?                                 --Num. xxxii.
                                                  6.

            Like a demigod here sit I in the sky. --Shak.

   4. To lie, rest, or bear; to press or weigh; -- with on; as,
      a weight or burden sits lightly upon him.

            The calamity sits heavy on us.        --Jer. Taylor.

   5. To be adjusted; to fit; as, a coat sts well or ill.

            This new and gorgeous garment, majesty, Sits not so
            easy on me as you think.              --Shak.

   6. To suit one well or ill, as an act; to become; to befit;
      -- used impersonally. [Obs.] --Chaucer.

   7. To cover and warm eggs for hatching, as a fowl; to brood;
      to incubate.

            As the partridge sitteth on eggs, and hatcheth them
            not.                                  --Jer. xvii.
                                                  11.

   8. To have position, as at the point blown from; to hold a
      relative position; to have direction.

            Like a good miller that knows how to grind, which
            way soever the wind sits.             --Selden.

            Sits the wind in that quarter?        --Sir W.
                                                  Scott.

   9. To occupy a place or seat as a member of an official body;
      as, to sit in Congress.

   10. To hold a session; to be in session for official
       business; -- said of legislative assemblies, courts,
       etc.; as, the court sits in January; the aldermen sit
       to-night.

   11. To take a position for the purpose of having some
       artistic representation of one's self made, as a picture
       or a bust; as, to sit to a painter.

Sitting \Sit"ting\, a.
   Being in the state, or the position, of one who, or that
   which, sits.

Sitting \Sit"ting\, n.
   1. The state or act of one who sits; the posture of one who
      occupies a seat.

   2. A seat, or the space occupied by or allotted for a person,
      in a church, theater, etc.; as, the hall has 800 sittings.

   3. The act or time of sitting, as to a portrait painter,
      photographer, etc.

   4. The actual presence or meeting of any body of men in their
      seats, clothed with authority to transact business; a
      session; as, a sitting of the judges of the King's Bench,
      or of a commission.

            The sitting closed in great agitation. --Macaulay.

   5. The time during which one sits while doing something, as
      reading a book, playing a game, etc.

            For the understanding of any one of St. Paul's
            Epistles I read it all through at one sitting.
                                                  --Locke.

   6. A brooding over eggs for hatching, as by fowls.

            The male bird . . . amuses her [the female] with his
            songs during the whole time of her sitting.
                                                  --Addison.

   {Sitting room}, an apartment where the members of a family
      usually sit, as distinguished from a drawing-room, parlor,
      chamber, or kitchen.

Source : WordNet®

sit
     v 1: be seated [syn: {sit down}] [ant: {stand}, {lie}]
     2: sit around, often unused; "The object sat in the corner"
     3: take a seat [syn: {sit down}] [ant: {arise}]
     4: be in session; "When does the court of law sit?"
     5: assume a posture as for artistic purposes; "We don't know
        the woman who posed for Leonardo so often" [syn: {model},
        {pose}, {posture}]
     6: sit and travel on the back of animal, usually while
        controlling its motions; "She never sat a horse!"; "Did
        you ever ride a camel?"; "The girl liked to drive the
        young mare" [syn: {ride}]
     7: work or act as a baby-sitter; "I cannot baby-sit tonight; I
        have too much homework to do" [syn: {baby-sit}]
     8: show to a seat; assign a seat for; "The host seated me next
        to Mrs. Smith" [syn: {seat}, {sit down}]
     [also: {sitting}, {sat}]

sitting
     adj 1: (of persons) having the torso erect and legs bent with the
            body supported on the buttocks; "the seated Madonna";
            "the audience remained seated" [syn: {seated}] [ant: {standing}]
     2: not moving and therefore easy to attack; "a sitting target"

sitting
     n 1: (photography) the act of assuming a certain position (as for
          a photograph or portrait); "he wanted his portrait
          painted but couldn't spare time for the sitting" [syn: {posing}]
     2: the act of assuming or maintaining a seated position; "he
        read the mystery at one sitting"
     3: a meeting of spiritualists; "the seance was held in the
        medium's parlor" [syn: {seance}, {session}]
     4: a session as of a legislature or court

sitting
     See {sit}