an appeal to a deity that invokes harm or injury on another; an imprecation
a swearword or other offensive expression used in anger
The ringing of the telephone occasioned another string of curses
an influence for evil or misfortune that comes or seems to come in or as if in response to imprecation or as retribution
There seemed to be a curse on the family
a cause of misfortune
Extreme conscientiousness can be more of a curse than an advantage
(the curse) informal, dated menstruation