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 sound associated with extended suffering, sorrow, and toil.
Heavily laden, as if to creak under the strain.
That groans.