The Collaborative International Dictionary of English v.0.48:

Over \O"ver\, a.
   1. Upper; covering; higher; superior; -- chiefly used in
      composition; as, overshoes, overcoat, over-garment,
      overlord.
      [1913 Webster]

   2. Excessive; too much or too great; -- chiefly used in
      composition; as, overwork, overhaste, overreaction.
      [1913 Webster +PJC]

The Collaborative International Dictionary of English v.0.48:

over \o"ver\, adv.
   Excessively; too much or too greatly; -- chiefly used in
   composition; as, overwork, overhasty, overeager, overanxious,
   overreact, overcook.
   [PJC]

The Collaborative International Dictionary of English v.0.48:

Over \O"ver\, n. (Cricket)
   A certain number of balls (usually four) delivered
   successively from behind one wicket, after which the ball is
   bowled from behind the other wicket as many times, the
   fielders changing places.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Over \O"ver\, adv.
   1. From one side to another; from side to side; across;
      crosswise; as, a board, or a tree, a foot over, i. e., a
      foot in diameter.
      [1913 Webster]

   2. From one person or place to another regarded as on the
      opposite side of a space or barrier; -- used with verbs of
      motion; as, to sail over to England; to hand over the
      money; to go over to the enemy. "We will pass over to
      Gibeah." --Judges xix. 12. Also, with verbs of being: At,
      or on, the opposite side; as, the boat is over.
      [1913 Webster]

   3. From beginning to end; throughout the course, extent, or
      expanse of anything; as, to look over accounts, or a stock
      of goods; a dress covered over with jewels.
      [1913 Webster]

   4. From inside to outside, above or across the brim.
      [1913 Webster]

            Good measure, pressed down . . . and running over.
                                                  --Luke vi. 38.
      [1913 Webster]

   5. Beyond a limit; hence, in excessive degree or quantity;
      superfluously; with repetition; as, to do the whole work
      over. "So over violent." --Dryden.
      [1913 Webster]

            He that gathered much had nothing over. --Ex. xvi.
                                                  18.
      [1913 Webster]

   6. In a manner to bring the under side to or towards the top;
      as, to turn (one's self) over; to roll a stone over; to
      turn over the leaves; to tip over a cart.
      [1913 Webster]

   7. Completed; at an end; beyond the limit of continuance;
      finished; as, when will the play be over?. "Their distress
      was over." --Macaulay. "The feast was over." --Sir W.
      Scott.
      [1913 Webster]

   Note: Over, out, off, and similar adverbs, are often used in
         the predicate with the sense and force of adjectives,
         agreeing in this respect with the adverbs of place,
         here, there, everywhere, nowhere; as, the games were
         over; the play is over; the master was out; his hat is
         off.
         [1913 Webster]

   Note: Over is much used in composition, with the same
         significations that it has as a separate word; as in
         overcast, overflow, to cast or flow so as to spread
         over or cover; overhang, to hang above; overturn, to
         turn so as to bring the underside towards the top;
         overact, overreach, to act or reach beyond, implying
         excess or superiority.
         [1913 Webster]

   All over.
      (a) Over the whole; upon all parts; completely; as, he is
          spatterd with mud all over.
      (b) Wholly over; at an end; as, it is all over with him.


   Over again, once more; with repetition; afresh; anew.
      --Dryden.

   Over against, opposite; in front. --Addison.

   Over and above, in a manner, or degree, beyond what is
      supposed, defined, or usual; besides; in addition; as, not
      over and above well. "He . . . gained, over and above, the
      good will of all people." --L' Estrange.

   Over and over, repeatedly; again and again.

   To boil over. See under Boil, v. i.

   To come it over, To do over, To give over, etc. See
      under Come, Do, Give, etc.

   To throw over, to abandon; to betray. Cf. To throw
      overboard, under Overboard.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Over \O"ver\ ([=o]"v[~e]r), prep. [AS. ofer; akin to D. over, G.
   ["u]ber, OHG. ubir, ubar, Dan. over, Sw. ["o]fver, Icel.
   yfir, Goth. ufar, L. super, Gr. "ype`r, Skr. upari.
   [root]199. Cf. Above, Eaves, Hyper-, Orlop, Super-,
   Sovereign, Up.]
   1. Above, or higher than, in place or position, with the idea
      of covering; -- opposed to under; as, clouds are over
      our heads; the smoke rises over the city.
      [1913 Webster]

            The mercy seat that is over the testimony. --Ex.
                                                  xxx. 6.
      [1913 Webster]

            Over them gleamed far off the crimson banners of
            morning.                              --Longfellow.
      [1913 Webster]

   2. Across; from side to side of; -- implying a passing or
      moving, either above the substance or thing, or on the
      surface of it; as, a dog leaps over a stream or a table.
      [1913 Webster]

            Certain lakes . . . poison birds which fly over
            them.                                 --Bacon.
      [1913 Webster]

   3. Upon the surface of, or the whole surface of; hither and
      thither upon; throughout the whole extent of; as, to
      wander over the earth; to walk over a field, or over a
      city.
      [1913 Webster]

   4. Above; -- implying superiority in excellence, dignity,
      condition, or value; as, the advantages which the
      Christian world has over the heathen. --Swift.
      [1913 Webster]

   5. Above in authority or station; -- implying government,
      direction, care, attention, guard, responsibility, etc.;
      -- opposed to under.
      [1913 Webster]

            Thou shalt be over my house.          --Gen. xli.
                                                  40.
      [1913 Webster]

            I will make thee rules over many things. --Matt.
                                                  xxv. 23.
      [1913 Webster]

            Dost thou not watch over my sin ?     --Job xiv. 16.
      [1913 Webster]

            His tender mercies are over all his works. --Ps.
                                                  cxlv. 9.
      [1913 Webster]

   6. Across or during the time of; from beginning to end of;
      as, to keep anything over night; to keep corn over winter.
      [1913 Webster]

   7. Above the perpendicular height or length of, with an idea
      of measurement; as, the water, or the depth of water, was
      over his head, over his shoes.
      [1913 Webster]

   8. Beyond; in excess of; in addition to; more than; as, it
      cost over five dollars. "Over all this." --Chaucer.
      [1913 Webster]

   9. Above, implying superiority after a contest; in spite of;
      notwithstanding; as, he triumphed over difficulties; the
      bill was passed over the veto.
      [1913 Webster]

   Note: Over, in poetry, is often contracted into o'er.
         [1913 Webster]

   Note: Over his signature (or name) is a substitute for the
         idiomatic English form, under his signature (name, hand
         and seal, etc.), the reference in the latter form being
         to the authority under which the writing is made,
         executed, or published, and not the place of the
         autograph, etc.
         [1913 Webster]

   Over all (Her.), placed over or upon other bearings, and
      therefore hinding them in part; -- said of a charge.

   Over one's head, Over head and ears, beyond one's depth;
      completely; wholly; hopelessly; as, over head and ears in
      debt.

   head over heels
      (a) completely; intensely; as, head over heels in love.
          [Colloq.]
      (b) in a tumbling manner; as, to fall head over heels down
          the stairs.
      (c) precipitously and without forethought; impulsively.

   Over the left. See under Left.

   To run over (Mach.), to have rotation in such direction
      that the crank pin traverses the upper, or front, half of
      its path in the forward, or outward, stroke; -- said of a
      crank which drives, or is driven by, a reciprocating
      piece.
      [1913 Webster]

WordNet (r) 3.0 (2006):

over
    adv 1: at or to a point across intervening space etc.; "come
           over and see us some time"; "over there"
    2: throughout an area; "he is known the world over"
    3: throughout a period of time; "stay over the weekend" [syn:
       over, o'er]
    4: beyond the top or upper surface or edge; forward from an
       upright position; "a roof that hangs over";
    5: over the entire area; "the wallpaper was covered all over
       with flowers"; "she ached all over"; "everything was dusted
       over with a fine layer of soot" [syn: all over, over]
    adj 1: having come or been brought to a conclusion; "the
           harvesting was complete"; "the affair is over, ended,
           finished"; "the abruptly terminated interview" [syn:
           complete, concluded, ended, over(p), all over,
           terminated]
    n 1: (cricket) the division of play during which six balls are
         bowled at the batsman by one player from the other team
         from the same end of the pitch

Moby Thesaurus II by Grady Ward, 1.0:

256 Moby Thesaurus words for "over":
   SOL, a cut above, above, above and beyond, abovestairs, across,
   additionally, afresh, again, ago, ahead, airward, all about,
   all bets off, all included, all off, all over, all through, all up,
   aloft, aloof, also, altogether, among other things, and all,
   and also, and so, anew, antiquated, antique, around, as a bonus,
   as well, ascendant, at about, at an end, athwart, au reste, away,
   backwards, beside, besides, better, beyond, bis, blown over,
   bottom side up, bottom up, by, by way of, bygone, bypast, canceled,
   capping, chosen, closed, complete, concluded, contrarily,
   contrariwise, conversely, da capo, dated, de novo, dead,
   dead and buried, deceased, decided, defunct, deleted, departed,
   distinguished, ditto, done, done for, done with, down, durante,
   during, eclipsing, elapsed, else, eminent, en plus, encore, ended,
   exceeding, excellent, excelling, excessively, exorbitantly,
   expired, expunged, exterior, external, extinct, extra, extremely,
   farther, finer, fini, finished, for, for lagniappe, forgotten,
   from the beginning, further, furthermore, gone, gone glimmering,
   gone-by, greater, has-been, head over heels, heels over head, high,
   high up, higher, highest, hurdle, immensely, immoderately,
   in addition, in ascendancy, in excess of, in the air,
   in the ascendant, in the clouds, inordinately, intemperately,
   inter alia, into the bargain, inversely, irrecoverable, item,
   kaput, lapsed, leap, left, leftover, likewise, major, marked, more,
   moreover, negotiate, net, no more, obsolete, odd, of choice, off,
   on, on high, on stilts, on the peak, on the side, on tiptoe,
   on top of, once again, once more, one up on, onto, outrageously,
   outside, outstanding, outward, over again, over and above,
   overfull, overhead, overleap, overly, overlying, overmuch,
   overplus, overweeningly, passe, passed, passed away, passing by,
   passing through, past, pending, perfected, plus, rare, remaining,
   remanent, rivaling, round, round about, run out, set at rest,
   settled, shot, similarly, skyward, spare, straight up, super,
   superfluous, superincumbent, superior, supernumerary, surmount,
   surpassing, surplus, surviving, terminated, then, therewith,
   through, through with, throughout, tiptoe, to, to boot, to spare,
   to the zenith, too, too much, too-too, topping, topsy-turvy,
   transcendent, transcendental, transcending, transversely,
   turned around, twice over, two times, unconscionably, unconsumed,
   unduly, unreasonably, unused, up, upmost, upon, upper, uppermost,
   upside down, upstairs, upward, upwards, upwards of, vanished,
   vault, via, vice versa, washed up, wiped out, wound up, yet,
   zapped