break off	to stop a relationship
drop off	to fall asleep
go off	to explode/ to become unsuitable for consumption
keep off	not to approach
kick off	to start a match
lay off	to fire
pull off	to manage to succeed/ to stop a car
put off	to discourage/ to postpone
see off	to go and say goodbye
show off	to sport
stop off	to interrupt
take off	to imitate
tell off	to reprimend
turn off	to switch off
wear off	to become less intense
write off	to treat sth as useless