Definition of: groan

(grōn) v.i.
1. To utter a low, prolonged sound of or as of pain, sorrow, etc.; moan.
2. To be oppressed or overburdened: The people groaned under the heavy taxes.
—v.t.
3. To utter or express with groans.
—noun A low moaning sound uttered in anguish, distress, or derision. [OE grānian]
—groan′er noun
—groan′ ing adjective noun
—groan′ing·ly adverb