A suitcase is usually a rectangular piece of luggage, especially for carrying clothes while traveling. Luggage is suitcases, trunks, etc.; baggage.
Cargo goes with you (like a purse) and checked baggage goes in the luggage department which is probably not where you are seated.
baggage
A baggage carousel is a conveyor to transport luggage from aircraft, trains or luggage shuttles to claiming passengers.
The luggage room is the "baggage car" between the two VIP passenger cars on the train. There is another "freight" baggage car near the back of the train.
A baggage cart is an alternative term for a luggage cart, a small vehicle pushed by travellers to carry individual luggage.
A baggage reclaim is a designated location for receiving checked luggage such as the baggage carousels at an airport.
A baggage claim is a designated location for receiving checked luggage such as the baggage carousels at an airport.
The is no abstract noun form for the concrete noun luggage. The synonym (noun) baggage has an abstract context as a word for emotions or thoughts that stem from painful or unpleasant past experiences that affect present behavior.
Baggage is luggage used to hold your clothes etc when you are travelling. A back pack is luggage designed to be carried on your back.
The word "baggage" is a noun (luggage), so there is no formal adjective. Something may be placed in baggage, or declared as baggage, or bagged in baggage.
Shipping luggage internationally can be difficult, since any luggage classified as excess baggage by the airlines will be subject to hefty fees. The best option is to ship luggage separately using an excess baggage carrier.