The term "carry-on baggage" is commonly associated with air travel, but there are several synonyms that can be used to describe this type of luggage. A popular synonym is "hand luggage," which refers to the bags or suitcases that passengers can bring on board the plane with them. Other synonyms include "cabin luggage," "cabin bags," and "cabin suitcases." These terms are all used interchangeably to describe the same type of luggage. While the weight and size restrictions for carry-on baggage vary between airlines, it is always important to check the rules before packing to ensure that your luggage meets the requirements and avoids any additional fees or inconvenience.