[1] : The Collaborative International Dictionary of English v.0.48

strengthen \strength"en\, v. t. imp.  p. p. strengthened; p.
   pr.  vb. n. strengthening.
   1. to make strong or stronger; to add strength to; as, to
      strengthen a limb, a bridge, an army; to strengthen an
      obligation; to strengthen authority.
      1913 webster

            let noble warwick, cobham, and the rest, . . .
            with powerful policy strengthen themselves. --shak.
      1913 webster

   2. to animate; to encourage; to fix in resolution.
      1913 webster

            charge joshua, and encourage him, and strengthen
            him.                                  --deut. iii.
                                                  28.
      1913 webster

   syn: to invigorate; confirm; establish; fortify; animate;
        encourage.
        1913 webster
see also:
strengthened strengthening 

[2] : WordNet (r) 2.0

strengthened
     adj : given added strength or support; "reinforced concrete
           contains steel bars or metal netting" syn: reinforced
see also:
reinforced 

[3] : Moby Thesaurus II by Grady Ward, 1.0

55 moby thesaurus words for "strengthened":
   accelerated, aggrandized, amplified, augmented, backed, beefed-up,
   bloated, boosted, broadened, calcified, callous, calloused,
   case-hardened, crusted, crusty, crystallized, deepened, elevated,
   enhanced, enlarged, expanded, extended, fossilized, granulated,
   hardened, heightened, hiked, hornified, increased, incrusted,
   indurate, indurated, inflated, intensified, jazzed up, lapidified,
   magnified, multiplied, ossified, petrified, proliferated, raised,
   reinforced, rigidified, sclerotic, set, solidified, spread,
   steeled, stiffened, swollen, tightened, toughened, vitrified,
   widened

Strengthened >> S Words
Strengthened, definition of term: Strengthened
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