erw

E1R1W4
/ˈɛɹuː/

noun

A medieval Welsh unit of surface area equal to 11664 sq ft, or about ¼ acre.

Similar
Welsh acre
OriginWelsh erw →
UncommonScrabble 6
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Meanings

erw1

nounerw (plural erws or erwau)

plural erws · plural erwau

  1. historicalA medieval Welsh unit of surface area equal to 11664 sq ft, or about ¼ acre.

    Synonyms: Welsh acre

ERW2

nounERW (plural ERWs)

plural ERWs

  1. abbreviationinitialismgovernmentInitialism of enhanced-radiation weapon (“neutron bomb”).
  2. abbreviationacronymgovernmentAcronym of explosive remnant of war.

Synonyms & antonyms

nounA medieval Welsh unit of surface area equal to 11664 sq ft, or about ¼ acre.

Similar
Welsh acre
Also see
acrewelsh acre

Origin

  1. Welsherw
  2. Englisherw

Borrowed from Welsh erw.

More words from Welsh

Full word history & related roots →

Rhymes & wordplay

Anagrams

werrew
Cite this entry
APA

erw. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/erw

MLA

“erw.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/erw. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “erw,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/erw.

Source: erw on Wiktionary, CC BY-SA 4.0.