vehicle

noun

• 1a thing used for transporting people or goods, especially on land, such as a car, lorry, or cart: the vehicle was sent skidding across the road a heavy goods vehicle

• 2a thing used to express, embody, or fulfil something:I use paint as a vehicle for my ideas
• a substance that facilitates the use of a drug, pigment, or other material mixed with it: casein was used as a vehicle for pigments by the medieval painters

• 3a film, television programme, song, etc. that is intended to display the leading performer to the best advantage:a vehicle for a star who was one of Hollywood’s hottest properties

• 4a privately controlled company through which an individual or organization conducts a particular kind of business, especially investment.