PEI
/piː.iː.aɪ/noun
PEI is spelled P-E-I: 3 letters and one syllable. It appears 1.0 times per million words in written English, the 28,918th most frequent word form (wordfreq, 2021 data). As a noun, PEI means “Initialism of polyetherimide” (English Wiktionary, September 2026).
How many letters and syllables are in PEI?
| Letters | 3: P-E-I |
|---|---|
| Syllables | 1 (from its American pronunciation) |
| In writing | 1.0 times per million words; the 28,918th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is PEI?
PEI appears 1.0 times per million words in written English, the 28,918th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce PEI?
- /piː.iː.aɪ/
PEI has one syllable (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of PEI
- P.E.I.
- P. E. I.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does PEI mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
Initialism of polyetherimide.
- 2
Initialism of polyethyleneimine.
- 3
Initialism of pancreatic exocrine insufficiency.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).