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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

  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

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.

A new channel was created to bypass the last remaining weir on the Ecclesbourne, which is located between Wirksworth and where the river joins the Derwent near Duffield.

From BBC • Nov. 13, 2025

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

On Tuesday, the court was shown photos of a weir the group was trying to navigate.

From BBC • Apr. 23, 2025

Mr 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 • Apr. 23, 2025

The force that carried her out was as smooth and powerful as water pouring over a weir; the particles of Dust were streaming along as if they, too, were pouring over some invisible edge.

From "The Amber Spyglass" by Philip Pullman