1. A wooden peg that is used to fasten timbers in shipbuilding; water causes the peg to swell and hold the timbers fast
   - treenail, trunnel

Derived forms: trenails

Type of: nog, peg

• water faucet
• water fennel
• water fern
• water filter
• water flaxseed
• water flea
• water fountain
• water gage
• water gap
• water gas
• water gate
• water gauge
• water gillyflower
• water glass
• water gum
• water gun
• water hammer
• water hazard
• water heater
• water hemlock
• water hen
• water hickory
• water hole
• water horehound
• water horsetail