a soft low sound of pain or grief
a complaint, expressed in a suffering discontented voice
utter moans; say with moans
complain about (sth or doing sth), sometimes without cause
"The students groaned when the professor got out the exam booklets"
"The ancient door soughed when opened"
And oft I heard the tender dove, In firry woodlands making moan.
She..bitterly moaned the fickleness of her Matilda.
What are you moaning about this time?
Cage is always moaning about not being treated equally.