Source : Webster's Revised Unabridged Dictionary (1913)

Kiss \Kiss\, v. i.
   1. To make or give salutation with the lips in token of love,
      respect, etc.; as, kiss and make friends.

   2. To meet; to come in contact; to touch fondly.

            Like fire and powder, Which as they kiss consume.
                                                  --Shak.

            Rose, rose and clematis, Trail and twine and clasp
            and kiss.                             --Tennyson.

   {Kissing comfit}, a perfumed sugarplum to sweeten the breath.
      [Obs or Prov. End.] --Shak.

Kiss \Kiss\, v. t. [imp. & p. p. {Kissed};p. pr. & vb. n.
   {Kissing}.] [OE. kissen, cussen, AS. cyssan, fr. coss a kiss;
   of uncertain origin; akin to D. kus, G. kuss, Icel. koss.]
   1. To salute with the lips, as a mark of affection,
      reverence, submission, forgiveness, etc.

            He . . . kissed her lips with such a clamorous
            smack, That at the parting all the church echoed.
                                                  --Shak.

   2. To touch gently, as if fondly or caressingly.

            When the sweet wind did gently kiss the trees.
                                                  --Shak.

Kiss \Kiss\, n. [OE. kiss, derived under the influence of the
   verb from the older form coss, AS. coss. See {Kiss}, v.]
   1. A salutation with the lips, as a token of affection,
      respect, etc.; as, a parting kiss; a kiss of
      reconciliation.

            Last with a kiss, she took a long farewell.
                                                  --Dryden.

            Dear as remembered kisses after death. --Tennyson.

   2. A small piece of confectionery.

Source : WordNet®

kiss
     v 1: touch with the lips or press the lips (against someone's
          mouth or other body part) as an expression of love,
          greeting, etc.; "The newly married couple kissed"; "She
          kissed her grandfather on the forehead when she entered
          the room" [syn: {buss}, {osculate}]
     2: touch lightly or gently; "the blossoms were kissed by the
        soft rain"

kiss
     n 1: the act of caressing with the lips (or an instance thereof)
          [syn: {buss}, {osculation}]
     2: a cookie made of egg whites and sugar
     3: any of several bite-sized candies
     4: a light glancing touch; "there was a brief kiss of their
        hands in passing"

Source : Free On-Line Dictionary of Computing

KISS
     
        Early system on IBM 650.  Listed in CACM 2(5):16 (May 1959).