Source : Webster's Revised Unabridged Dictionary (1913)

Tip \Tip\, v. t. [imp. & p. p. {Tipped}; p. pr. & vb. n.
   {Tipping}.]
   To form a point upon; to cover the tip, top, or end of; as,
   to tip anything with gold or silver.

         With truncheon tipped with iron head.    --Hudibras.

         Tipped with jet, Fair ermines spotless as the snows
         they press.                              --Thomson.

Tip \Tip\, n. [Akin to D. & Dan. tip, LG. & Sw. tipp, G. zipfel,
   and probably to E. tap a plug, a pipe.]
   1. The point or extremity of anything; a pointed or somewhat
      sharply rounded end; the end; as, the tip of the finger;
      the tip of a spear.

            To the very tip of the nose.          --Shak.

   2. An end piece or part; a piece, as a cap, nozzle, ferrule,
      or point, applied to the extreme end of anything; as, a
      tip for an umbrella, a shoe, a gas burner, etc.

   3. (Hat Manuf.) A piece of stiffened lining pasted on the
      inside of a hat crown.

   4. A thin, boarded brush made of camel's hair, used by
      gilders in lifting gold leaf.

   5. Rubbish thrown from a quarry.

Tip \Tip\, v. t. [Cf. LG. tippen to tap, Sw. tippa, and E. tap
   to strike gently.]
   1. To strike slightly; to tap.

            A third rogue tips me by the elbow.   --Swift.

   2. To bestow a gift, or douceur, upon; to give a present to;
      as, to tip a servant. [Colloq.] --Thackeray.

   3. To lower one end of, or to throw upon the end; to tilt;
      as, to tip a cask; to tip a cart.

   {To tip off}, to pour out, as liquor.

   {To tip over}, to overturn.

   {To tip the wink}, to direct a wink; to give a hint or
      suggestion by, or as by, a wink. [Slang] --Pope.

   {To tip up}, to turn partly over by raising one end.

Tip \Tip\, v. i.
   To fall on, or incline to, one side. --Bunyan.

   {To tip off}, to fall off by tipping.

Tip \Tip\, n. [See {Tip} to strike slightly, and cf. {Tap} a
   slight blow.]
   1. A light touch or blow; a tap.

   2. A gift; a douceur; a fee. [Colloq.]

   3. A hint, or secret intimation, as to the chances in a horse
      race, or the like. [Sporting Cant]

Source : WordNet®

tip
     n 1: the extreme end of something; especially something pointed
     2: a relatively small amount of money given for services
        rendered (as by a waiter) [syn: {gratuity}, {pourboire}, {baksheesh},
         {bakshish}, {bakshis}, {backsheesh}]
     3: an indication of potential opportunity; "he got a tip on the
        stock market"; "a good lead for a job" [syn: {lead}, {steer},
         {confidential information}, {wind}, {hint}]
     4: a V shape; "the cannibal's teeth were filed to sharp points"
        [syn: {point}, {peak}]
     5: the top point of a mountain or hill; "the view from the peak
        was magnificent"; "they clambered to the summit of
        Monadnock" [syn: {peak}, {crown}, {crest}, {top}, {summit}]
     [also: {tipping}, {tipped}]

tip
     v 1: cause to tilt; "tip the screen upward"
     2: mark with a tip; "tip the arrow with the small stone"
     3: give a tip or gratuity to in return for a service, beyond
        the agreed-on compensation; "Remember to tip the waiter";
        "fee the steward" [syn: {fee}, {bung}]
     4: cause to topple or tumble by pushing [syn: {topple}, {tumble}]
     5: to incline or bend from a vertical position; "She leaned
        over the banister" [syn: {lean}, {tilt}, {slant}, {angle}]
     6: walk on one's toes [syn: {tiptoe}, {tippytoe}]
     7: strike lightly; "He tapped me on the shoulder" [syn: {tap}]
     8: give insider information or advise to; "He tipped off the
        police about the terrorist plot" [syn: {tip off}]
     9: remove the tip from; "tip artichokes"
     [also: {tipping}, {tipped}]

Source : Free On-Line Dictionary of Computing

TIP
     
        1. {Texas Instruments Pascal}.
     
        2. A {Unix} program for interactive communication via {serial
        line}s.
     
        {Unix manual page}: tip(1).