The Collaborative International Dictionary of English v.0.48:

Kiss \Kiss\, n. [OE. kiss, derived under the influence of the
   verb from the older form coss, AS. coss. See Kiss, v.]
   [1913 Webster]
   1. A salutation with the lips, as a token of affection,
      respect, etc.; as, a parting kiss; a kiss of
      reconciliation.
      [1913 Webster]

            Last with a kiss, she took a long farewell.
                                                  --Dryden.
      [1913 Webster]

            Dear as remembered kisses after death. --Tennyson.
      [1913 Webster]

   2. A small piece of confectionery.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Kiss \Kiss\ (k[i^]s), v. t. [imp. & p. p. Kissed (k[i^]st);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.
      [1913 Webster]

            He . . . kissed her lips with such a clamorous
            smack,
            That at the parting all the church echoed. --Shak.
      [1913 Webster]

   2. To touch gently, as if fondly or caressingly.
      [1913 Webster]

            When the sweet wind did gently kiss the trees.
                                                  --Shak.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Kiss \Kiss\, v. i.
   1. To make or give salutation with the lips in token of love,
      respect, etc.; as, kiss and make friends.
      [1913 Webster]

   2. To meet; to come in contact; to touch fondly.
      [1913 Webster]

            Like fire and powder,
            Which as they kiss consume.           --Shak.
      [1913 Webster]

            Rose, rose and clematis,
            Trail and twine and clasp and kiss.   --Tennyson.
      [1913 Webster]

   Kissing comfit, a perfumed sugarplum to sweeten the breath.
      [Obs or Prov. End.] --Shak.
      [1913 Webster]

WordNet (r) 3.0 (2006):

kiss
    n 1: the act of caressing with the lips (or an instance thereof)
         [syn: kiss, buss, osculation]
    2: a cookie made of egg whites and sugar
    3: any of several bite-sized candies [syn: kiss, candy kiss]
    4: a light glancing touch; "there was a brief kiss of their
       hands in passing"
    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: snog, kiss, buss, osculate]
    2: touch lightly or gently; "the blossoms were kissed by the
       soft rain"

Moby Thesaurus II by Grady Ward, 1.0:

100 Moby Thesaurus words for "kiss":
   abandon, accost, address, attouchement, bid good day,
   bid good morning, blow a kiss, bob, bow, bow to, breath, brush,
   brush by, buss, caress, come in contact, contact, contingence,
   curtsy, cutaneous sense, desert, dismiss, disregard, embrace,
   exchange greetings, feel, feeling, fingertip caress, flick,
   forsake, give up, glance, graze, greet, greeting, hail, hand-clasp,
   hand-mindedness, handshake, hello, hit, how-do-you-do, hug, ignore,
   impinge, impingement, impingence, kiss hands, lambency, lap, lick,
   lift the hat, light touch, lip, neck, nod, nod to, nudge, osculate,
   osculation, peck, pull the forelock, relinquish, renounce,
   repudiate, rub, salutation, salute, say hello, scrape,
   sense of touch, shake, shake hands, shave, sideswipe, skim, skirt,
   smack, smacker, smile, smile of recognition, smooch, spoon,
   squeak by, stroke, sweep, tactile sense, taction, tangency, tap,
   tentative contact, tentative poke, touch, touch lightly,
   touch the hat, touch upon, touching, uncover, wave, whisper



V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

KISS
       Keep It Simple, Stupid (slang, Usenet, IRC)


The Free On-line Dictionary of Computing (30 December 2018):

KISS

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


Easton's 1897 Bible Dictionary:

Kiss
   of affection (Gen. 27:26, 27; 29:13; Luke 7:38, 45);
   reconciliation (Gen. 33:4; 2 Sam. 14:33); leave-taking (Gen.
   31:28,55; Ruth 1:14; 2 Sam. 19:39); homage (Ps. 2:12; 1 Sam.
   10:1); spoken of as between parents and children (Gen. 27:26;
   31:28, 55; 48:10; 50:1; Ex. 18:7; Ruth 1:9, 14); between male
   relatives (Gen. 29:13; 33:4; 45:15). It accompanied social
   worship as a symbol of brotherly love (Rom. 16:16; 1 Cor. 16:20;
   2 Cor. 13:12; 1 Thess. 5:26; 1 Pet. 5:14). The worship of idols
   was by kissing the image or the hand toward the image (1 Kings
   19:18; Hos. 13:2).


The Devil's Dictionary (1881-1906):

KISS, n.  A word invented by the poets as a rhyme for "bliss."  It is
supposed to signify, in a general way, some kind of rite or ceremony
appertaining to a good understanding; but the manner of its
performance is unknown to this lexicographer.