The Collaborative International Dictionary of English v.0.48:

Flavor \Fla"vor\, v. t. [imp. & p. p. Flavored; p. pr. & vb.
   n. Flavoring.]
   To give flavor to; to add something (as salt or a spice) to,
   to give character or zest.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Flavor \Fla"vor\, n. [OF. fleur, flaur (two syllables), odor,
   cf. F. fleurer to emit an odor, It. flatore a bad odor, prob.
   fr. L. flare to bow, whence the sense of exhalation. Cf.
   Blow.] [Written also flavour.]
   1. That quality of anything which affects the smell; odor;
      fragrances; as, the flavor of a rose.
      [1913 Webster]

   2. That quality of anything which affects the taste; that
      quality which gratifies the palate; relish; zest; savor;
      as, the flavor of food or drink.
      [1913 Webster]

   3. That which imparts to anything a peculiar odor or taste,
      gratifying to the sense of smell, or the nicer perceptions
      of the palate; a substance which flavors.
      [1913 Webster]

   4. That quality which gives character to any of the
      productions of literature or the fine arts.
      [1913 Webster]

WordNet (r) 3.0 (2006):

flavor
    n 1: the general atmosphere of a place or situation and the
         effect that it has on people; "the feel of the city excited
         him"; "a clergyman improved the tone of the meeting"; "it
         had the smell of treason" [syn: spirit, tone, feel,
         feeling, flavor, flavour, look, smell]
    2: the taste experience when a savoury condiment is taken into
       the mouth [syn: relish, flavor, flavour, sapidity,
       savor, savour, smack, nip, tang]
    3: (physics) the six kinds of quarks [syn: flavor, flavour]
    v 1: lend flavor to; "Season the chicken breast after roasting
         it" [syn: season, flavor, flavour]

Moby Thesaurus II by Grady Ward, 1.0:

133 Moby Thesaurus words for "flavor":
   aftertaste, air, ambiance, ambience, aroma, atmosphere, attribute,
   badge, besprinkle, bitter, brand, breath, breathe, brew, cachet,
   cast, character, characteristic, color, condiment, condiments,
   configuration, cut, decoct, definite odor, detectable odor,
   differentia, differential, distinctive feature, dredge, dye,
   earmark, effluvium, emanation, entincture, essence, exhalation,
   extract, feature, feel, feeling, figure, flavorer, flavoring,
   fragrance, fume, gust, hallmark, hint, idiocrasy, idiosyncrasy,
   imbrue, imbue, impregnate, impress, impression, index,
   individualism, infiltrate, infuse, instill, keynote, leaven,
   lineaments, mannerism, mark, marking, mold, nature, odor, palate,
   particularity, peculiarity, penetrate, pepper, permeate, pervade,
   piquancy, property, quality, quirk, redolence, relish, salt,
   sapidity, sapor, saturate, sauce, savor, savoriness, scent, seal,
   season, seasoner, seasoning, sense, shape, singularity, smack,
   smell, soupcon, sour, specialty, spice, spirit, spoor, stamp,
   steep, stench, stomach, style, subtle odor, suffuse, suggestion,
   sweet, taint, tang, taste, tastiness, temper, tincture, tinge,
   token, tongue, tooth, touch, trace, trail, trait, transfuse, trick,
   whiff, zest



The Jargon File (version 4.4.7, 29 Dec 2003):

flavor
 n.

    1. [common] Variety, type, kind. ?DDT commands come in two flavors.? ?These
    lights come in two flavors, big red ones and small green ones.? ?Linux is a
    flavor of Unix? See vanilla.

    2. The attribute that causes something to be flavorful. Usually used in
    the phrase ?yields additional flavor?. ?This convention yields additional
    flavor by allowing one to print text either right-side-up or upside-down.?
    See vanilla. This usage was certainly reinforced by the terminology of
    quantum chromodynamics, in which quarks (the constituents of, e.g.,
    protons) come in six flavors (up, down, strange, charm, top, bottom) and
    three colors (red, blue, green) ? however, hackish use of flavor at MIT
    predated QCD.

    3. The term for class (in the object-oriented sense) in the LISP Machine
    Flavors system. Though the Flavors design has been superseded (notably by
    the Common LISP CLOS facility), the term flavor is still used as a general
    synonym for class by some LISP hackers.