Synset
group of motor vehicles operating together under the same ownership
<noun.group>
fleet
semantic pointers
member meronym
bus, autobus, coach, charabanc, double-decker, jitney, motorbus, motorcoach, omnibus, passenger vehicle
taxi, cab, hack, taxicab
part holonym
bus line
hypernym
collection, aggregation, accumulation, assemblage
hyponym
motor pool