Verb
1. put an end to a state or an activity;
"Quit teasing your little brother"2. give up or retire from a position;
"The Secretary fo the Navy will leave office next month""The chairman resigned over the financial scandal"3. go away or leave
4. turn away from; give up;
"I am foreswearing women forever"5. give up in the face of defeat of lacking hope; admit defeat;
"In the second round, the challenger gave up"