The Collaborative International Dictionary of English v.0.48:

Bluster \Blus"ter\, v. t.
   To utter, or do, with noisy violence; to force by blustering;
   to bully.
   [1913 Webster]

         He bloweth and blustereth out . . . his abominable
         blasphemy.                               --Sir T. More.
   [1913 Webster]

         As if therewith he meant to bluster all princes into a
         perfect obedience to his commands.       --Fuller.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bluster \Blus"ter\, n.
   1. Fitful noise and violence, as of a storm; violent winds;
      boisterousness.
      [1913 Webster]

            To the winds they set
            Their corners, when with bluster to confound
            Sea, air, and shore.                  --Milton.
      [1913 Webster]

   2. Noisy and violent or threatening talk; noisy and boastful
      language. --L'Estrange.
      [1913 Webster]

   Syn: Noise; boisterousness; tumult; turbulence; confusion;
        boasting; swaggering; bullying.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bluster \Blus"ter\, v. i. [imp. & p. p. Blustered; p. pr. &
   vb. n. Blustering.] [Allied to blast.]
   [1913 Webster]
   1. To blow fitfully with violence and noise, as wind; to be
      windy and boisterous, as the weather.
      [1913 Webster]

            And ever-threatening storms
            Of Chaos blustering round.            --Milton.
      [1913 Webster]

   2. To talk with noisy violence; to swagger, as a turbulent or
      boasting person; to act in a noisy, tumultuous way; to
      play the bully; to storm; to rage.
      [1913 Webster]

            Your ministerial directors blustered like tragic
            tyrants.                              --Burke.
      [1913 Webster]

WordNet (r) 3.0 (2006):

bluster
    n 1: noisy confusion and turbulence; "he was awakened by the
         bluster of their preparations"
    2: a swaggering show of courage [syn: bravado, bluster]
    3: a violent gusty wind
    4: vain and empty boasting [syn: braggadocio, bluster,
       rodomontade, rhodomontade]
    v 1: blow hard; be gusty, as of wind; "A southeaster blustered
         onshore"; "The flames blustered"
    2: show off [syn: boast, tout, swash, shoot a line,
       brag, gas, blow, bluster, vaunt, gasconade]
    3: act in an arrogant, overly self-assured, or conceited manner
       [syn: swagger, bluster, swash]

Moby Thesaurus II by Grady Ward, 1.0:

198 Moby Thesaurus words for "bluster":
   agitation, bawl, be livid, be pissed, bellow, blast, blow,
   blow a hurricane, blow great guns, blow over, blow up, bludgeon,
   bluff, bluster and bluff, bluster out of, boast, boastfulness,
   boasting, bobbery, boil, boiling, bombast, bounce, brag,
   braggadocio, braggartism, bragging, bravado, brawl, breeze,
   breeze up, brew, broil, brouhaha, browbeat, browned off, bulldoze,
   bully, bullyrag, burn, bustle, cacophony, carry on, chafe, chaos,
   churn, clamor, come up, commotion, conceit, conturbation, cow,
   crow, demoralize, discomposure, disorder, disquiet, disquietude,
   disturbance, dragoon, draw the longbow, ebullition, embroilment,
   excitement, fanaticism, fanfaronade, ferment, fermentation, fever,
   feverishness, fidgets, flap, flourish, flurry, fluster,
   flutteration, foment, fomentation, foofaraw, frenzy, freshen, fret,
   fume, furor, furore, fury, fuss, gasconade, gasconism, gather,
   go on, grandiloquence, harangue, harass, have a conniption, hector,
   heroics, hot air, hubbub, huff, hurly-burly, inquietude,
   intimidate, jactation, jactitation, jitters, jumpiness, look big,
   maelstrom, malaise, moil, nerviness, nervosity, nervousness,
   out-herod Herod, pandemonium, passion, perturbation, pipe up,
   pissed off, puff, puffery, racket, rage, raging, raise Cain,
   raise hell, raise the devil, raise the roof, rant, rant and rave,
   rave, raving, restlessness, rodomontade, roil, roister, rollick,
   rout, row, ruckus, rumpus, seethe, seething, set in, show off,
   side, simmer, sizzle, slang, smoke, smolder, speak for Buncombe,
   splutter, sputter, squall, stew, stir, storm, storminess, storming,
   strut, swagger, swaggering, swashbuckle, swirl,
   systematically terrorize, take on, talk big, tempestuousness,
   terrorize, threaten, throw a fit, to-do, trepidation, trepidity,
   tumult, tumultuation, tumultuousness, turbidity, turbulence,
   turmoil, twitter, unease, unrest, uproar, upset, vanity, vapor,
   vaunt, vauntery, vaunting, waft, whiff, whiffle, wildness, zeal,
   zealousness