What is another word for Lock-weir?
Pronunciation: [lˈɒkwˈi͡ə] (IPA) 
A lock-weir, also known as a canal weir or flash lock, is a structure used in waterways to control the flow of water and maintain levels. There are several synonyms for lock-weir, including pound lock, tidal lock, stop lock, and barrage. A pound lock is a type of lock that is used to raise and lower boats between sections of water with different levels. A tidal lock is a lock that controls the level of water in a tidal river or estuary. A stop lock is used to regulate water levels on an artificial waterway, while a barrage is a structure that controls the flow of water in a river or estuary to reduce the impact of high tides or floods.
