1. Something or someone that makes or investigates tunnels
   "He is a member of the engineers, a tunneller who worked on the construction of the London Underground"
   - tunneler [US]

Derived forms: tunnellers

• forgivable
• forgivably
• forgive
• forgiveness
• forgiver
• forgiving
• forgivingly
• forgivingness
• forgo
• forgoing
• forgotten
• forint
• fork
• fork out
• fork over
• fork up
• fork-like
• forked
• forked lightning
• forkful
• forking
• forklift
• forklift truck
• forlorn
• forlorn hope