crowded street
a street full of people
cross the border
to pass the line that divides two countries
expiry date
the date after which an official document, agreement, etc. is no longer legally acceptable, or after which something should not be used or eaten
valid
sth that is officially acceptable and can be used, for example documents
personal belongings
things that you have on yourself i.e. keys, phone etc.
hand luggage / baggage
a bag that you can take with you on a plane
foreign currency
a type of money that is not used in your country
window seat
a seat that you can book near the window in a train or a plane
emergency exit
an exit which you can use in case of an accident
row
a line of seats in a cinema, theatre, etc
aisle seat
a seat you can book near the aisle in a train or a plane
lost and found
the place where items that have been found are kept until they are collected
transfer
a change of a train/plane etc
