\Groan\, v. i. [imp. & p. p. {Groaned}; p. pr. & vb. n.
{Groaning}.] [OE. gronen, granen, granien, AS. gr?nian, fr.
the root of grennian to grin. [root]35. See {2d Grin}, and
cf. {Grunt}.]
1. To give forth a low, moaning sound in breathing; to utter
   a groan, as in pain, in sorrow, or in derision; to moan.
         For we . . . do groan, being burdened. --2 Cor. v.
                                               4.
         He heard the groaning of the oak.     --Sir W.
                                               Scott.
2. To strive after earnestly, as with groans.
         Nothing but holy, pure, and clear, Or that which
         groaneth to be so.                    --Herbert.

\Groan\, v. t.
To affect by groans.

\Groan\, n.
A low, moaning sound; usually, a deep, mournful sound uttered
in pain or great distress; sometimes, an expression of strong
disapprobation; as, the remark was received with groans.
      Such groans of roaring wind and rain.    --Shak.
      The wretched animal heaved forth such groans. --Shak.