TRAVEL AND MOVEMENT

2. to move up or climb something
4. to hit against something or someone, esp. by accident
6. (especially of a vehicle) to slide along a surface so that you have no control
7. to get out of a vehicle, especially a train or bus
10. too blocked or crowded and causing difficulties
15. a person who enjoys long walks in the countryside
16. unable to leave somewhere because of a problem such as not having any transport or money
17. someone who travels by getting free rides in someone else's vehicle
18. a large group of people
19. to get onto or allow people to get onto a boat, train, or aircraft

1. unpleasent smell
3. (especially of moving objects) to hit something violently
5. to get off a horse, bicycle, or motorcycle
6. (on an aircraft, ship, or train) someone who helps and serves passengers
8. a person who is walking, especially in an area where vehicles go
9. someone who regularly travels between work and home
11. not moving or not changing
12. (boat or ship) unable to move because it is touching ground or in a place where there is very little water
13. an act of falling or sliding
14. to move slowly, especially as a result of outside forces, with no control over direction