Select the option that can be used as a one-word substitute for the given group of words.

A large building with an extensive floor area, typically for housing aircraft

Hangar

The word that can be used as a one-word substitute for "a large building with an extensive floor area, typically for housing aircraft" is hangar.

• Airport is a place where aircraft take off and land.
• Shed is a small, open-sided building for storing tools or equipment.
• Hangar is a large building with an extensive floor area, typically for housing aircraft.
• Barn is a large building for storing farm animals and equipment.

Hangar is the most appropriate word for the given group of words because it specifically refers to a building that is used to house aircraft. It is derived from the Middle French word hanghart, meaning "enclosure near a house."