The Collaborative International Dictionary of English v.0.48:

Catch \Catch\, v. i.
   1. To attain possession. [Obs.]
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            Have is have, however men do catch.   --Shak.
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   2. To be held or impeded by entanglement or a light
      obstruction; as, a kite catches in a tree; a door catches
      so as not to open.
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   3. To take hold; as, the bolt does not catch.
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   4. To spread by, or as by, infecting; to communicate.
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            Does the sedition catch from man to man? --Addison.
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   To catch at, to attempt to seize; to be eager to get or
      use. "[To] catch at all opportunities of subverting the
      state." --Addison.

   To catch up with, to come up with; to overtake.
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The Collaborative International Dictionary of English v.0.48:

Catch \Catch\, v. t. [imp. & p. p. Caughtor Catched; p. pr.
   & vb. n. Catching. Catched is rarely used.] [OE. cacchen,
   OF. cachier, dialectic form of chacier to hunt, F. chasser,
   fr. (assumend) LL. captiare, for L. capture, V. intens. of
   capere to take, catch. See Capacious, and cf. Chase,
   Case a box.]
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   1. To lay hold on; to seize, especially with the hand; to
      grasp (anything) in motion, with the effect of holding;
      as, to catch a ball.
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   2. To seize after pursuing; to arrest; as, to catch a thief.
      "They pursued . . . and caught him." --Judg. i. 6.
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   3. To take captive, as in a snare or net, or on a hook; as,
      to catch a bird or fish.
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   4. Hence: To insnare; to entangle. "To catch him in his
      words". --Mark xii. 13.
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   5. To seize with the senses or the mind; to apprehend; as, to
      catch a melody. "Fiery thoughts . . . whereof I catch the
      issue." --Tennyson.
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   6. To communicate to; to fasten upon; as, the fire caught the
      adjoining building.
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   7. To engage and attach; to please; to charm.
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            The soothing arts that catch the fair. --Dryden.
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   8. To get possession of; to attain.
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            Torment myself to catch the English throne. --Shak.
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   9. To take or receive; esp. to take by sympathy, contagion,
      infection, or exposure; as, to catch the spirit of an
      occasion; to catch the measles or smallpox; to catch cold;
      the house caught fire.
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   10. To come upon unexpectedly or by surprise; to find; as, to
       catch one in the act of stealing.
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   11. To reach in time; to come up with; as, to catch a train.
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   To catch fire, to become inflamed or ignited.

   to catch it to get a scolding or beating; to suffer
      punishment. [Colloq.]

   To catch one's eye, to interrupt captiously while speaking.
      [Colloq.] "You catch me up so very short." --Dickens.

   To catch up, to snatch; to take up suddenly.
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The Collaborative International Dictionary of English v.0.48:

Catch \Catch\, n.
   1. Act of seizing; a grasp. --Sir P. Sidney.
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   2. That by which anything is caught or temporarily fastened;
      as, the catch of a gate.
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   3. The posture of seizing; a state of preparation to lay hold
      of, or of watching he opportunity to seize; as, to lie on
      the catch. [Archaic] --Addison.
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            The common and the canon law . . . lie at catch, and
            wait advantages one againt another.   --T. Fuller.
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   4. That which is caught or taken; profit; gain; especially,
      the whole quantity caught or taken at one time; as, a good
      catch of fish.
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            Hector shall have a great catch if he knock out
            either of your brains.                --Shak.
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   5. Something desirable to be caught, esp. a husband or wife
      in matrimony. [Colloq.] --Marryat.
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   6. pl. Passing opportunities seized; snatches.
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            It has been writ by catches with many intervals.
                                                  --Locke.
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   7. A slight remembrance; a trace.
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            We retain a catch of those pretty stories.
                                                  --Glanvill.
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   8. (Mus.) A humorous canon or round, so contrived that the
      singers catch up each other's words.
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WordNet (r) 3.0 (2006):

catch
    n 1: a drawback or difficulty that is not readily evident; "it
         sounds good but what's the catch?" [syn: catch,
         gimmick]
    2: the quantity that was caught; "the catch was only 10 fish"
       [syn: catch, haul]
    3: a person regarded as a good matrimonial prospect [syn:
       catch, match]
    4: anything that is caught (especially if it is worth catching);
       "he shared his catch with the others"
    5: a break or check in the voice (usually a sign of strong
       emotion)
    6: a restraint that checks the motion of something; "he used a
       book as a stop to hold the door open" [syn: catch, stop]
    7: a fastener that fastens or locks a door or window
    8: a cooperative game in which a ball is passed back and forth;
       "he played catch with his son in the backyard"
    9: the act of catching an object with the hands; "Mays made the
       catch with his back to the plate"; "he made a grab for the
       ball before it landed"; "Martin's snatch at the bridle failed
       and the horse raced away"; "the infielder's snap and throw
       was a single motion" [syn: catch, grab, snatch, snap]
    10: the act of apprehending (especially apprehending a
        criminal); "the policeman on the beat got credit for the
        collar" [syn: apprehension, arrest, catch, collar,
        pinch, taking into custody]
    v 1: discover or come upon accidentally, suddenly, or
         unexpectedly; catch somebody doing something or in a
         certain state; "She caught her son eating candy"; "She was
         caught shoplifting"
    2: perceive with the senses quickly, suddenly, or momentarily;
       "I caught the aroma of coffee"; "He caught the allusion in
       her glance"; "ears open to catch every sound"; "The dog
       picked up the scent"; "Catch a glimpse" [syn: catch, pick
       up]
    3: reach with a blow or hit in a particular spot; "the rock
       caught her in the back of the head"; "The blow got him in the
       back"; "The punch caught him in the stomach" [syn: get,
       catch]
    4: take hold of so as to seize or restrain or stop the motion
       of; "Catch the ball!"; "Grab the elevator door!" [syn:
       catch, grab, take hold of]
    5: succeed in catching or seizing, especially after a chase; "We
       finally got the suspect"; "Did you catch the thief?" [syn:
       get, catch, capture]
    6: to hook or entangle; "One foot caught in the stirrup" [syn:
       hitch, catch] [ant: unhitch]
    7: attract and fix; "His look caught her"; "She caught his eye";
       "Catch the attention of the waiter" [syn: catch, arrest,
       get]
    8: capture as if by hunting, snaring, or trapping; "I caught a
       rabbit in the trap today" [syn: capture, catch]
    9: reach in time; "I have to catch a train at 7 o'clock"
    10: get or regain something necessary, usually quickly or
        briefly; "Catch some sleep"; "catch one's breath"
    11: catch up with and possibly overtake; "The Rolls Royce caught
        us near the exit ramp" [syn: overtake, catch, catch up
        with]
    12: be struck or affected by; "catch fire"; "catch the mood"
    13: check oneself during an action; "She managed to catch
        herself before telling her boss what was on her mind"
    14: hear, usually without the knowledge of the speakers; "We
        overheard the conversation at the next table" [syn: catch,
        take in, overhear]
    15: see or watch; "view a show on television"; "This program
        will be seen all over the world"; "view an exhibition";
        "Catch a show on Broadway"; "see a movie" [syn: watch,
        view, see, catch, take in]
    16: cause to become accidentally or suddenly caught, ensnared,
        or entangled; "I caught the hem of my dress in the brambles"
    17: detect a blunder or misstep; "The reporter tripped up the
        senator" [syn: trip up, catch]
    18: grasp with the mind or develop an understanding of; "did you
        catch that allusion?"; "We caught something of his theory in
        the lecture"; "don't catch your meaning"; "did you get it?";
        "She didn't get the joke"; "I just don't get him" [syn:
        catch, get]
    19: contract; "did you catch a cold?"
    20: start burning; "The fire caught"
    21: perceive by hearing; "I didn't catch your name"; "She didn't
        get his name when they met the first time" [syn: catch,
        get]
    22: suffer from the receipt of; "She will catch hell for this
        behavior!" [syn: catch, get]
    23: attract; cause to be enamored; "She captured all the men's
        hearts" [syn: capture, enamour, trance, catch,
        becharm, enamor, captivate, beguile, charm,
        fascinate, bewitch, entrance, enchant]
    24: apprehend and reproduce accurately; "She really caught the
        spirit of the place in her drawings"; "She got the mood just
        right in her photographs" [syn: catch, get]
    25: take in and retain; "We have a big barrel to catch the
        rainwater"
    26: spread or be communicated; "The fashion did not catch"
    27: be the catcher; "Who is catching?"
    28: become aware of; "he caught her staring out the window"
    29: delay or hold up; prevent from proceeding on schedule or as
        planned; "I was caught in traffic and missed the meeting"