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  • weir
    weir
    noun
    a small dam in a river or stream.
  • Weir
    Weir
    noun
    Judith. born 1954, Scottish composer: her operas include A Night at the Chinese Opera (1987), and Armida (2005)
Synonyms

weir

American  
[weer] / wɪər /

noun

weirs plural
  1. a small dam in a river or stream.

  2. a fence, as of brush or narrow boards, or a net set in a stream, channel, etc., for catching fish.


Weir 1 British  
/ wɪə /

noun

  1. Judith. born 1954, Scottish composer: her operas include A Night at the Chinese Opera (1987), and Armida (2005)

  2. Peter. born 1944, Australian film director; his films include Dead Poets Society (1989), The Truman Show (1998), and Master and Commander (2003)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

weir 2 British  
/ wɪə /

noun

  1. a low dam that is built across a river to raise the water level, divert the water, or control its flow

  2. a series of traps or enclosures placed in a stream to catch fish

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of weir

before 900; Middle English were, Old English wer, derivative of root of werian to defend, dam up

Vocabulary lists containing weir

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

He said there was a plan to get out of the water ahead of the weir but the force of the water meant she and the others were carried over it.

From BBC • Jun. 5, 2026

O'Dwyer deferred to Lloyd as the company owner to decide the final route but raised valid concerns, such as the drop over the weir.

From BBC • Jun. 5, 2026

Lloyd's company Salty Dog had organised the excursion in which Paul O'Dwyer, Andrea Powell, Morgan Rogers and Nicola Wheatley drowned at a weir in Haverfordwest, Pembrokeshire.

From BBC • Apr. 30, 2025

Within about a minute, the next six paddleboarders descended the weir.

From BBC • Apr. 25, 2025

A stone weir slowed the current and was a favorite diving and jumping-off place.

From "Atonement" by Ian McEwan

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