ferrule /ferˈool, -əl/

1. A metal band, ring or cap on the tip of a stick, etc for reinforcing it
2. A threaded cylindrical fitting for joining two pipes or rods

• firewood
• firewoods
• firework
• fireworks
• fireworm
• fireworms
• fire-worship
• fire-worshipper
• fire-worshippers
• firing
• firing line
• firing lines
• firing on all cylinders
• firing order
• firing orders
• firing parties
• firing party
• firing pin
• firing pins
• firing point
• firing points
• firings
• firing squad
• firing squads
• firing-step