An apron is a GARMENT worn over other clothing to protect it from spills and dirt. It is typically made of cloth or plastic and can be secured with strings, smocks, pinafores, or bibs. The term 'TARMAC' is derived from the phrase 'TARMACADAM, ' which is a combination of tar and macadam, and is used to refer to a paved surface, such as an airport runway. The term 'mas' is a shortened form of the Spanish word 'mascarada, ' which refers to a type of festive costume or masquerade. The term 'TAXI' is derived from the French word 'taximeter, ' which is a device used to measure the distance traveled in a TAXI.