The Collaborative International Dictionary of English v.0.48:

Strut \Strut\, v. t.
   To hold apart. Cf. Strut, n., 3.
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The Collaborative International Dictionary of English v.0.48:

Strut \Strut\, a.
   Protuberant. [Obs.] --Holland.
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The Collaborative International Dictionary of English v.0.48:

Strut \Strut\, v. t. [imp. & p. p. Strutted; p. pr. & vb. n.
   Strutting.] [OE. struten, strouten, to swell; akin to G.
   strozen to be swelled, to be puffed up, to strut, Dan.
   strutte.]
   1. To swell; to bulge out. [R.]
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            The bellying canvas strutted with the gale.
                                                  --Dryden.
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   2. To walk with a lofty, proud gait, and erect head; to walk
      with affected dignity.
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            Does he not hold up his head, . . . and strut in his
            gait?                                 --Shak.
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The Collaborative International Dictionary of English v.0.48:

Strut \Strut\, n. [For senses 2 & 3 cf. LG. strutt rigid.]
   1. The act of strutting; a pompous step or walk.
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   2. (Arch.) In general, any piece of a frame which resists
      thrust or pressure in the direction of its own length. See
      Brace, and Illust. of Frame, and Roof.
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   3. (Engin.) Any part of a machine or structure, of which the
      principal function is to hold things apart; a brace
      subjected to compressive stress; -- the opposite of stay,
      and tie.
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WordNet (r) 3.0 (2006):

strut
    n 1: a proud stiff pompous gait [syn: strut, prance,
         swagger]
    2: brace consisting of a bar or rod used to resist longitudinal
       compression
    v 1: to walk with a lofty proud gait, often in an attempt to
         impress others; "He struts around like a rooster in a hen
         house" [syn: tittup, swagger, ruffle, prance,
         strut, sashay, cock]