luggage
Luggage is called Bagasie in Afrikaans.
A carry on luggage basically is a bag that can be carried and bears the size of a bag that can fit inside the luggage compartment of the airplane.
The place where luggage is kept in an airplane is called the cargo hold.
The area where you pick up your luggage at an airport is called a baggage claim.
The proper term for luggage for a hat would be a hat box.
malletier
porter
Porter!
Yes, the ferry staff will check your luggage if you're in a big group. Many ferry services ask large groups to arrive early for check-in.
A luggage with 4 wheels. It's called a spinner because you can spin it, while with 2 wheels you can't.
skycaps/baggage handlers
It is called the boot.