The Boy Scouts of the Air in Indian Land Gordon Stuart
a girder that is hollow and square or rectangular in shape
(as modifier): a box-girder bridge
Also called box beam
a gutter set into the slope of a roof above the cornice.
to put (a square-rigged sailing vessel) on a new tack by bracing the head yards aback and backing onto the new heading. Historical Examples The Flying Bo’sun Arthur Mason verb (nautical) to bring (a square-rigger) onto a new tack by backwinding the foresails and steering hard round
a heading, usually atthe top of a page, newspaper column, or column of figures, enclosed in a box formed by rules.
a person who has rented or subscribed for a box, as at a theatrical performance, sporting event, or the like. a person entitled to receive mail in a specific post-office box.