Definition of "runabout"

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

(dated) A motor car having a single row of seats.  examples

(historical) A light, open, American horse-drawn vehicle with four large wheels.

(archaic) A gadabout or vagabond.

(science fiction) A small, relatively maneuverable spacecraft or shuttlecraft.  examples