walk out
phrasal verbwalk out 
- (informal) (of workers) to stop working in order to go on strike- Workers at the plant are threatening to walk out over pay.
 
walk out (of something) 
- to leave a meeting, performance, etc. suddenly, especially in order to show that you do not like or approve of it- They hinted that they would walk out of the peace talks.
 
walk out (on somebody) 
- (informal, disapproving) to suddenly leave somebody that you are having a relationship with and that you have a responsibility for synonym desert- How could she walk out on her kids?
 
walk out (on something) 
- (informal) to stop doing something that you have agreed to do before it is completed- I never walk out on a job half done.