Leave the ground
Lift off
To start a journey
Head off
Send a letter by post
Send off
Leave a place quietly
Slip off
Leave a place quickly
Clear off
Do
Run off
Fall asleep
Doze off
Stopped
Broke off
Put in the post
Sent off
Has given her negative feelings
Put her off
Leave at once
Turned off
Not seriously
Laughed off
Not do something immediately
Hold off