Something which causes grief.
A formal complaint, especially in the context of a unionized workplace.
Feelings of being wronged; outrage.
A wrong or hardship suffered, which is the grounds of a complaint.
Violation of regulations or objectionable behavior.
A complaint or annoyance.
a low, mournful cry of pain, sorrow or pleasure
To complain; to grumble.
To say in a moan, or with a moaning voice.
To grieve.
To make a moan or similar sound.