The term "baggage allowance" refers to the amount of luggage that is permitted for transportation by an airline, train or other mode of travel. It usually includes both the weight and size limitations imposed on passengers' checked bags as well as carry-on items such as hand luggage, purses, laptop bags etc. The allowance varies depending on factors like class of service, destination, and airline policy. Exceeding the allowed amount may result in additional fees or denial of transportation for oversized or overweight baggage.