Shuttle
A smooth, boat-shaped holder that carries the weft thread across the warp through the shed.
Also: naka, boat shuttle
A shuttle is a small tapered piece of wood, often with metal tips, hollowed to hold a spool of weft yarn called a pirn. Its smooth shape lets it slide through the shed without catching the warp. A thread unwinds from the pirn through a small eye as the shuttle goes across, and the weft is laid down behind it. Weavers use different shuttles for different jobs. A larger one carries the main weft across the full width. Small ones, sometimes called by local names such as naka, carry a single colour or a zari thread for a motif.