PEI

P3E1I1
/piː.iː.aɪ/

proper noun

An island in eastern Canada, which forms the majority of the eponymous province.

Less commonScrabble 5
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Meanings

PEI1

proper noun

alternative P.E.I. · alternative P. E. I.

  1. abbreviationinitialismInitialism of Prince Edward Island: a province of Canada.
  2. An island in eastern Canada, which forms the majority of the eponymous province.
nounPEI (uncountable)

alternative P.E.I. · alternative P. E. I.

  1. abbreviationinitialismuncountableInitialism of polyetherimide.
  2. abbreviationinitialismuncountableInitialism of polyethyleneimine.
  3. abbreviationinitialismuncountableInitialism of pancreatic exocrine insufficiency.

Pei2

proper nounPei (plural Peis)

plural Peis

  1. A surname.

Synonyms & antonyms

Also see
polyetherimidepolyethyleneimineprince edward island

Origin

Borrowed from Mandarin 裴 (Péi) or 貝／贝 (Bèi) (Wade–Giles romanisation: Pei⁴).

Full word history & related roots →

Rhymes & wordplay

Anagrams

pieIEPepiipe
Cite this entry
APA

PEI. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/PEI

MLA

“PEI.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/PEI. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “PEI,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/PEI.

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