Set off
- Means: start a journey
- EX: She and I set off on our first vacation this evening.
Check in
- Means: Process of registering oneself at arrival in hotel or airport.
- EX: Please, before checking in remember to ask what they offer.
Check out
- Means: Process of paying bills before leaving hotels.
- EX: Remember to take necessary things before checking out of the hotels.
Take off
- Means: that an airplane leaves the ground and starts to fly.
- EX: My brother loves taking off airplanes.
Call off
- Means to cancel
- EX: She decided to call off her trip to Germany
Pick up
- Means: to arrive somewhere to take someone from one place to another, usually by car, or bike.
- EX: Could you please pick up my father from the airport?