0 present participle of ply
1 to sell or to work regularly at something, especially at a job that involves selling things:
2 When a boat, train, bus, etc. plies a particular route, it makes that journey regularly:
Some of them are subject to the condition of not plying for hire but there is a qualification even on that.
Cars plying for hire are very often indistinguishable from cars in private use.
Suppose you take the case of a managing owner, or the manager of a ship plying between two foreign ports.
If a motor car is in a hotel yard and open to hire for the public, is it not standing and plying for hire?
Taxi-cabs throughout the country should be brought within the same class of taxation as those plying for hire in town.
The number actually plying cannot be given, as there is no record of those withdrawn owing to accident, illness of drivers, or any other cause.
You have to give it to companies that are flying the flag and plying their trade under the great obstacles of flag discrimination and subsidisation.
Reports of alleged illegal plying for hire are normally made to local police stations.
