weir
word
Definition
A weir is a low wall or barrier built across a river or stream to control the flow of water or raise its level.
Usage & Nuances
"Weir" is mainly used in technical, engineering, or environmental contexts. It is sometimes confused with "dam," but weirs are much lower and designed to allow water to flow over them. Common in phrases like "flow over the weir" and rarely used outside discussions of rivers, water management, or fish migration.
Example Sentences
A weir helps control the water level in the river.
basic
The fish swim over the weir to travel upstream.
basic
They built a weir to prevent flooding in the village.
basic
The old stone weir is a local landmark by the river.
natural
During heavy rain, water rushes over the weir creating a waterfall effect.
natural
Let’s meet near the weir at sunset—it’s beautiful there.
natural