Definition

A structure built across a river or stream to control the flow of water, often used to raise the water level or divert it for various purposes, such as fishing or milling.

Example

The old weir helped to maintain the water level for the nearby mill.

Conversation

Have you ever seen the new weir they built by the park?

Yeah, I walked by it last week; it looks impressive!

I wonder if it helps with the fish population in the river.

I think it does, especially with how they designed the weir to create a better habitat.

Synonyms & Antonyms

Root Explanation

The word 'weir' originates from Old English 'wer', meaning a dam or a barrier. It refers specifically to a structure built to control the flow of water.

Memory Tip

Think of a 'dam' or 'barrier' that controls water flow — that's what a 'weir' is.

Visually Confused Words