thalweg or talweg /tälˈveg, -vāhh/ (geology)

1. The longitudinal profile of the bottom of a river bed
2. The middle of a main navigable waterway, acting as a boundary between states

• skliff
• skliffs
• sklim
• skoal
• skoff
• skoffed
• skoffing
• skoffs
• skokiaan
• skokiaans
• skol
• skolia
• skolion
• skollie
• skollies
• skolly
• skoosh
• skooshed
• skooshes
• skooshing
• Skr
• skran
• skreen
• skreigh
• skreighed