Source : Webster's Revised Unabridged Dictionary (1913)

Trim \Trim\, v. t. [imp. & p. p. {Trimmed}; p. pr. & vb. n.
   {Trimming}.] [OE. trimen, trumen, AS. trymian, trymman, to
   prepare, dispose, make strong, fr. trum firm, strong; of
   uncertain origin.]
   1. To make trim; to put in due order for any purpose; to make
      right, neat, or pleasing; to adjust.

            The hermit trimmed his little fire.   --Goldsmith.

   2. To dress; to decorate; to adorn; to invest; to embellish;
      as, to trim a hat.

Trim \Trim\, v. i.
   To balance; to fluctuate between parties, so as to appear to
   favor each.

Trim \Trim\, n.
   1. Dress; gear; ornaments.

            Seeing him just pass the window in his woodland
            trim.                                 --Sir W.
                                                  Scott.

   2. Order; disposition; condition; as, to be in good trim. ``
      The trim of an encounter.'' --Chapman.

   3. The state of a ship or her cargo, ballast, masts, etc., by
      which she is well prepared for sailing.

   4. (Arch) The lighter woodwork in the interior of a building;
      especially, that used around openings, generally in the
      form of a molded architrave, to protect the plastering at
      those points.

   {In ballast trim} (Naut.), having only ballast on board. --R.
      H. Dana, Jr.

   {Trim of the masts} (Naut.), their position in regard to the
      ship and to each other, as near or distant, far forward or
      much aft, erect or raking.

   {Trim of sails} (Naut.), that adjustment, with reference to
      the wind, witch is best adapted to impel the ship forward.

Trim \Trim\, a. [Compar. {Trimmer}; superl. {Trimmest}.] [See
   {Trim}, v. t.]
   Fitly adjusted; being in good order., or made ready for
   service or use; firm; compact; snug; neat; fair; as, the ship
   is trim, or trim built; everything about the man is trim; a
   person is trim when his body is well shaped and firm; his
   dress is trim when it fits closely to his body, and appears
   tight and snug; a man or a soldier is trim when he stands
   erect.

         With comely carriage of her countenance trim.
                                                  --Spenser.

         So deemed I till I viewed their trim array Of boats
         last night.                              --Trench.

Source : WordNet®

trim
     adj 1: thin and fit; "the spare figure of a marathon runner"; "a
            body kept trim by exercise" [syn: {spare}]
     2: (used of hair) neat and tidy; "a nicely kempt beard" [syn: {kempt},
         {tidy}]
     3: of places; characterized by order and neatness; free from
        disorder; "even the barn was shipshape"; "a trim little
        sailboat" [syn: {shipshape}, {well-kept}]
     4: (of persons) neat and smart in appearance; "a clean-cut and
        well-bred young man"; "the trig corporal in his jaunty
        cap" [syn: {clean-cut}, {trig}]
     5: severely simple in line or design; "a neat tailored suit";
        "tailored curtains" [syn: {tailored}]
     [also: {trimming}, {trimmed}, {trimmest}, {trimmer}]

trim
     v 1: remove the edges from and cut down to the desired size;
          "pare one's fingernails"; "trim the photograph"; "trim
          lumber" [syn: {pare}]
     2: decorate, as with ornaments; "trim the christmas tree";
        "trim a shop window"
     3: cut down on; make a reduction in; "reduce your daily fat
        intake"; "The employer wants to cut back health benefits"
        [syn: {reduce}, {cut down}, {cut back}, {trim down}, {trim
        back}, {cut}, {bring down}]
     4: balance in flight by regulating the control surfaces; "trim
        an airplane"
     5: be in equilibrium during a flight; "The airplane trimmed"
     6: decorate (food), as with parsley or other ornamental foods
        [syn: {garnish}, {dress}]
     7: cultivate, tend, and cut back the growth of; "dress the
        plants in the garden" [syn: {snip}, {clip}, {crop}, {lop},
         {dress}, {prune}, {cut back}]
     8: cut closely; "trim my beard" [syn: {shave}]
     9: adjust (sails on a ship) so that the wind is optimally used
     [also: {trimming}, {trimmed}, {trimmest}, {trimmer}]

trim
     n 1: a state of arrangement or appearance; "in good trim" [syn: {trimness}]
     2: a decoration or adornment on a garment; "the trimming on a
        hat"; "the trim on a shirt" [syn: {trimming}, {passementerie}]
     3: attitude of an aircraft in flight when allowed to take its
        own orientation
     4: cutting down to the desired size or shape [syn: {trimming},
        {clipping}]
     [also: {trimming}, {trimmed}, {trimmest}, {trimmer}]