IRR
noun
IRR is spelled I-R-R: 3 letters. It appears about once in every 4 million words in written English, the 62,894th most frequent word form (wordfreq, 2021 data). As a noun, IRR means “Initialism of Internal rate of return” (English Wiktionary, September 2026). The plural of IRR is Irrs or IRRs.
How many letters and syllables are in IRR?
| Letters | 3: I-R-R |
|---|---|
| In writing | about once in every 4 million words; the 62,894th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is IRR?
IRR appears about once in every 4 million words in written English, the 62,894th 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).
Forms of IRR
- Irrs plural
- IRRs plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does IRR mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
Initialism of Internal rate of return.
noun
- 1
Abbreviation of irregular galaxy.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).