(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.

(Britain, Canada) A preprinted cheque for a fixed amount, often in a foreign currency, issued by a bank that may be used instead of cash; may usually be replaced if lost or stolen.

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

plural of time-traveller

(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".

(US) Alternative spelling of time-traveller