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]