Definitions
1.nounA low, mournful sound uttered in pain or grief.
2.nounA low, guttural sound uttered in frustration, disapproval, or ecstasy.
3.noun(of an object) A low creaking sound from applied pressure or weight.
4.verbTo make a groan."The wooden table groaned under the weight of the banquet."
5.verbTo strive after earnestly, as if with groans.