travel through space in order to visit and explore other worlds

(chiefly science fiction) Hypothetical or fictional travel to the past or the future, typically by means of a machine (a time machine) or a wormhole.

A man who travels, often within a certain territory, soliciting orders or selling goods.

(physics) a wave that is not bounded by a given space, but can propagate freely / (physics) a wave in which the vibration is in the direction of propagation; a longitudinal wave

A company that arranges travel and accommodation for travellers.

expenditure incurred by an employee on account of a journey on official business

(Ireland) A nomadic ethnic minority, the Irish Travellers.

A pushchair with detachable carrycot or car seat.

plural of travel system

Someone who travels for travel's sake, with or without objective; someone who spends most time "on the road".