road roller,
steamroller vehicle equipped with heavy wide smooth rollers for compacting roads and pavements
vehicle -
a medium for the expression or achievement of something; "his editorials provided a vehicle for his political views"; "a congregation is a vehicle of group identity"; "the play was just a vehicle to display her talents"
vehicle -
any substance that facilitates the use of a drug or pigment or other material that is mixed with it
vehicle -
any inanimate object (as a towel or money or clothing or dishes or books or toys etc.) that can transmit infectious agents from one person to another
vehicle -
An animal or rarely a plant on which a Hindu deity rides or sits.
Wikipedia
A vehicle is a device that is designed or used to transport people or cargo. Most often vehicles are manufactured. Vehicles that do not travel on land often are called craft, such as watercraft, sailcraft, aircraft, hovercraft, and spacecraft.
OmegaWiki Dictionary
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vehicle Any conveyance in or by which people or objects are transported.