The Collaborative International Dictionary of English v.0.48:

Upright \Up"right`\, n.
   1. Something standing upright, as a piece of timber in a
      building. See Illust. of Frame.
      [1913 Webster]

   2. (Basketwork) A tool made from a flat strip of steel with
      chisel edges at both ends, bent into horseshoe, the
      opening between the cutting edges being adjustable, used
      for reducing splits to skeins. Called in full upright
      shave.
      [Webster 1913 Suppl.]

   3. (Football) the vertical part of a goalpost, especially the
      part above the horizontal bar; as, a field goal directly
      between the uprights.
      [PJC]

The Collaborative International Dictionary of English v.0.48:

Upright \Up"right`\, a. [AS. upright, uppriht. See Up, and
   Right, a.]
   1. In an erect position or posture; perpendicular; vertical,
      or nearly vertical; pointing upward; as, an upright tree.
      [1913 Webster]

            With chattering teeth, and bristling hair upright.
                                                  --Dryden.
      [1913 Webster]

            All have their ears upright.          --Spenser.
      [1913 Webster]

   2. Morally erect; having rectitude; honest; just; as, a man
      upright in all his ways.
      [1913 Webster]

            And that man [Job] was perfect and upright. --Job i.
                                                  1.
      [1913 Webster]

   3. Conformable to moral rectitude.
      [1913 Webster]

            Conscience rewards upright conduct with pleasure.
                                                  --J. M. Mason.
      [1913 Webster]

   4. Stretched out face upward; flat on the back. [Obs.] " He
      lay upright." --Chaucer.
      [1913 Webster]

   5. (Golf) Designating a club in which the head is
      approximately at a right angle with the shaft.
      [Webster 1913 Suppl.]

   Upright drill (Mach.), a drilling machine having the
      spindle vertical.
      [1913 Webster]

   Note: This word and its derivatives are usually pronounced in
         prose with the accent on the first syllable. But they
         are frequently pronounced with the accent on the second
         in poetry, and the accent on either syllable is
         admissible.
         [1913 Webster]

WordNet (r) 3.0 (2006):

upright
    adj 1: in a vertical position; not sloping; "an upright post"
           [syn: upright, unsloped]
    2: of moral excellence; "a genuinely good person"; "a just
       cause"; "an upright and respectable man" [syn: good,
       just, upright]
    3: upright in position or posture; "an erect stature"; "erect
       flower stalks"; "for a dog, an erect tail indicates
       aggression"; "a column still vertical amid the ruins"; "he
       sat bolt upright" [syn: erect, vertical, upright] [ant:
       unerect]
    n 1: a vertical structural member as a post or stake; "the ball
         sailed between the uprights" [syn: upright, vertical]
    2: a piano with a vertical sounding board [syn: upright,
       upright piano]

Moby Thesaurus II by Grady Ward, 1.0:

244 Moby Thesaurus words for "upright":
   Christian, Klavier, Samson post, Steinway, angelic, arrowlike,
   at attention, azimuth circle, baby grand, baluster, balustrade,
   banister, base, blameless, bolt upright, caryatid, cast up,
   cembalo, clarichord, clavicembalo, clavichord, clavicittern,
   clavicymbal, clavicytherium, clavier, clean, colonnade, column,
   concert grand, conscientious, cottage piano, couched harp,
   creditable, dado, dead straight, decent, die, direct, doorjamb,
   doorpost, downright, dulcimer harpsichord, elevate, elevated,
   endways, endwise, equitable, erect, erectly, estimable, ethical,
   even, exalted, exemplary, fair, flat, footstalk, full of integrity,
   gatepost, godly, good, grand, grand piano, hammer dulcimer,
   harmonichord, harpsichord, high, high-minded, high-principled,
   highly respectable, hitching post, honest, honorable, horizontal,
   immaculate, impartial, in a line, incorruptible, inviolate,
   irreproachable, jack, jamb, just, king post, law-abiding,
   law-loving, law-revering, level, lift up, lifted, lineal, linear,
   lofty, manichord, manichordon, manly, melodion, melopiano,
   milepost, monochord, moral, mullion, newel-post, noble, normal,
   on end, on stilts, orthodiagonal, pair of virginals, parlor grand,
   pedestal, pedicel, peduncle, perpendicular, perpendicularly,
   pianette, pianino, piano, piano-violin, pianoforte, pier, pilaster,
   pile, piling, pillar, pitch, plinth, plumb, pole, post, principled,
   pure, queen-post, raise, raise aloft, raise up, raised, rampant,
   rear, rear aloft, rearing, rectilineal, rectilinear, reputable,
   respectable, right, right angle, right on end, right-minded,
   righteous, ruler-straight, saintlike, saintly, scrupulous,
   seraphic, set up, shaft, signpost, smooth, snubbing post, socle,
   sostinente pianoforte, spinet, spotless, square piano, staff,
   stainless, stalk, stanchion, stand, stand upright, stand-up,
   standard, standing up, stem, sterling, stile, stilted, straight,
   straight-cut, straight-front, straight-side, straight-up,
   straightforward, streamlined, subbase, sublime, surbase, true,
   true-dealing, true-devoted, true-disposing, true-souled,
   true-spirited, truehearted, trunk, trustworthy, unbending, unbent,
   unblemished, unbowed, unbroken, uncorrupt, uncorrupted, uncurved,
   undefiled, undeflected, undeviating, undistorted, unimpeachable,
   uninterrupted, unspotted, unstained, unsullied, unswerving,
   untarnished, unturned, up, up on end, upcast, upend, upended,
   upflung, upheave, uplift, uplifted, upraise, upraised, uprear,
   upreared, upright piano, uprighteous, uprightly, upstanding,
   upstandingly, upthrown, upwards, vertical, vertical circle,
   violin piano, virginal, virtuous, worthy, yeomanly