Sounds you make with your mouth
To make a long deep sound, for example because you are in pain, upset, or disappointed, or with pleasure
She lay on the bed groaning.
To make a long low sound because of pain, unhappiness, or pleasure
The man was lying on the floor, moaning.
To breathe out slowly making a long, soft sound, especially because you are bored, disappointed, sad, tired or relaxed
I sighed deeply and sat down.
To breathe noisily and with difficulty, usually because you are ill
I was coughing and wheezing all night.
To make a short, low sound in your throat instead of speaking, usually because you are in pain, annoyed or not interested; to say something using this sound
I hauled myself over the wall, grunting with the effort.
To make a long high sound or cry
I could hear the children squealing with delight.