To grieve.
To complain; to grumble.
To say in a moan, or with a moaning voice.
To make a moan or similar sound.
a low, mournful cry of pain, sorrow or pleasure
To have a nightmare.
Any bad, miserable, difficult or terrifying situation or experience that arouses anxiety, terror, agony or great displeasure.
A very bad or frightening dream.
A feeling of extreme anxiety or suffocation experienced during sleep; Sleep paralysis.