Definition, Meaning & Synonyms
weir
noun
/wɪər/

Definition
A weir is a low dam built across a river or stream to raise the water level or regulate its flow.

Examples
- The fishermen set up their nets near the weir to catch fish.
- The weir helped to stabilize the river’s flow during dry seasons.
- Water levels were noticeably higher behind the weir compared to downstream.

Meaning
It is typically used to control the flow of water in waterways or to create a stilling basin for measuring the flow of a river.

Synonyms
- dam
- barrier
- weir dam