Dictionary.net

making low inarticulate sound as e.g. of pain or sorrow; "the groaning wounded"; "moaning sounds in her sleep"

making low inarticulate sound as e.g. of pain or sorrow; "the groaning wounded"; "moaning sounds in her sleep"

n. The act of groaning; complain; lamentation; a sound expressive of sorrow or pain;—in hunting, the cry of the buck.