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

• stay laces
• stayless
• stay loose
• staymaker
• staymakers
• stayne
• stay on
• stay-on tab
• stay-on tabs
• stay out
• stay over
• stay put
• stayre
• stays
• staysail
• staysails
• stay shtoom
• stay someone's hand
• stay stitching
• stay-tackle
• stay tape
• stay tapes
• stay the course
• stay the pace
• stay up