This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. A small motorboat.

n. A light aircraft.

n. A small, open automobile or carriage.

n. A vagabond or wanderer.

n. Any of several small vehicles, especially a small motor car for use on short journeys.

n. A motor car having a single row of seats (Wikipedia).

n. A gadabout; a vagabond.

n. Any light open wagon for ready and handy use.

n. A small, light-weight, open motor-car, or one fitted with a buggy-top, designed to carry two persons, and intended to operate in towns or cities or within short distances; also a small motor-boat.

n. One of a herd of cattle left to run about and graze at will.

n. an open automobile having a front seat and a rumble seat

"While the runabout is a faster deep-space vessel, the streamlined hull and large reinforced wings of the aeroshuttle make it significantly more efficient in high-speed atmospheric maneuvers and operations."

car    automobile    auto    motorcar    machine   

shuttlecraft    shuttlepod    starship    pinnace    lifeboat