interannual
adjective
interannual is spelled I-N-T-E-R-A-N-N-U-A-L: 11 letters. It appears about once in every 25 million words in written English, the 150,355th most frequent word form (wordfreq, 2021 data). As an adjective, interannual means “Occurring between years, or from one year to the next” (English Wiktionary, September 2026).
How many letters and syllables are in interannual?
| Letters | 11: I-N-T-E-R-A-N-N-U-A-L |
|---|---|
| In writing | about once in every 25 million words; the 150,355th 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 interannual?
Interannual appears about once in every 25 million words in written English, the 150,355th 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 interannual
- inter-annual
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does interannual mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Occurring between years, or from one year to the next
interannual variability
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does interannual come from?
From inter- + annual.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).