The Collaborative International Dictionary of English v.0.48:

Supreme \Su*preme"\, a. [L. supremus, superlative of superus
   that is above, upper, fr. super above: cf. F. supr[^e]me. See
   Super-, and cf. Sum.]
   1. Highest in authority; holding the highest place in
      authority, government, or power.
      [1913 Webster]

            He that is the supreme King of kings. --Shak.
      [1913 Webster]

   2. Highest; greatest; most excellent or most extreme; utmost;
      greatist possible (sometimes in a bad sense); as, supreme
      love; supreme glory; supreme magnanimity; supreme folly.
      [1913 Webster]

            Each would be supreme within its own sphere, and
            those spheres could not but clash.    --De Quincey.
      [1913 Webster]

   3. (Bot.) Situated at the highest part or point.
      [1913 Webster]

   The Supreme, the Almighty; God.
      [1913 Webster]

WordNet (r) 3.0 (2006):

supreme
    adj 1: final or last in your life or progress; "the supreme
           sacrifice"; "the supreme judgment"
    2: greatest in status or authority or power; "a supreme
       tribunal" [syn: sovereign, supreme]
    3: highest in excellence or achievement; "supreme among
       musicians"; "a supreme endxxeavor"; "supreme courage"
    4: greatest or maximal in degree; extreme; "supreme folly"

Moby Thesaurus II by Grady Ward, 1.0:

190 Moby Thesaurus words for "supreme":
   absolute, acmatic, all-absorbing, all-knowing, all-powerful,
   all-seeing, all-wise, almighty, apical, ascendant, at the head,
   authoritarian, authoritative, authorized, autocratic, best, boss,
   boundless, brilliant, capital, cardinal, champion, changeless,
   chief, choice, clothed with authority, commanding, competent,
   consequential, considerable, consummate, controlling, creating,
   creative, crowning, dominant, duly constituted, elect, elite,
   eminent, empowered, eternal, eternally the same, everlasting,
   ex officio, excellent, extreme, final, first, first-class,
   first-rate, for the best, foremost, general, glorious, good,
   governing, great, greatest, hallowed, handpicked, head, headmost,
   hegemonic, hegemonistic, highest, holy, immortal, immutable,
   imperative, important, in ascendancy, in charge, in chief,
   in the ascendant, incomparable, infinite, influential, inimitable,
   just, last, leading, limitless, loftiest, loving, luminous, main,
   majestic, making, master, masterful, masterly, matchless, maximal,
   maximum, merciful, meridian, meridional, mighty, momentous,
   monocratic, most, numinous, official, omnipotent, omnipresent,
   omniscient, one, optimal, optimum, outstanding, overmost,
   overriding, overruling, paramount, peerless, perfect, permanent,
   perpetual, picked, plenipotentiary, potent, powerful, predominant,
   predominate, preeminent, premier, prepollent, preponderant,
   preponderate, prepotent, prestigious, prevalent, primary, prime,
   principal, prize, prominent, puissant, quintessential, radiant,
   ranking, regnant, regulating, regulative, regulatory, reigning,
   ruling, sacred, select, senior, shaping, sovereign, sublime,
   substantial, summital, superb, superior, superlative, surpassing,
   timeless, tip-top, top, top-notch, topmost, totalitarian, towering,
   transcendent, ubiquitous, ultimate, unbounded, unchanging,
   undefined, unequaled, unexcelled, unlimited, unmatchable,
   unmatched, unparalleled, unrivaled, unsurpassable, unsurpassed,
   upmost, uppermost, utmost, uttermost, vertical, very best, weighty,
   zenithal



Bouvier's Law Dictionary, Revised 6th Ed (1856):

SUPREME. That which is superior to all other things; as the supreme power of
the state, which is an authority over all others. The supreme court, which
is superior to all other courts.



U.S. Gazetteer Places (2000):

Supreme, LA -- U.S. Census Designated Place in Louisiana
   Population (2000):    1119
   Housing Units (2000): 354
   Land area (2000):     3.413814 sq. miles (8.841737 sq. km)
   Water area (2000):    0.049281 sq. miles (0.127636 sq. km)
   Total area (2000):    3.463095 sq. miles (8.969373 sq. km)
   FIPS code:            74235
   Located within:       Louisiana (LA), FIPS 22
   Location:             29.859875 N, 90.985197 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Supreme, LA
    Supreme