trailer
trail.er \'tra--l*r\ n 1: one that trails 2: a trailing plant 3a: a highway or industrial-plant vehicle designed to be hauled (as by a tr actor) 3b: a highway vehicle designed to serve wherever parked as a dwelling or as a place of business
Webster's English Dictionarytrail.er \'tra--l*r\ n 1: one that trails 2: a trailing plant 3a: a highway or industrial-plant vehicle designed to be hauled (as by a tr actor) 3b: a highway vehicle designed to serve wherever parked as a dwelling or as a place of business