TWI
noun
TWI is spelled T-W-I: 3 letters. It appears about once in every 4 million words in written English, the 57,423rd most frequent word form (wordfreq, 2021 data). As a noun, TWI means “Initialism of tolerable weekly intake” (English Wiktionary, September 2026). The plural of TWI is TWIs.
How many letters and syllables are in TWI?
| Letters | 3: T-W-I |
|---|---|
| In writing | about once in every 4 million words; the 57,423rd 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 TWI?
TWI appears about once in every 4 million words in written English, the 57,423rd 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 TWI
- TWIs plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does TWI mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
Initialism of tolerable weekly intake.
- 2
Initialism of topographic wetness index.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
TWI in Spanish, French, German and Portuguese
In the sense two:
| Language | Words |
|---|---|
| German | zwie- |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does TWI come from?
From Middle English twi-, from Old English twi- (“two, double”), from Proto-Germanic *twi- (“two-, double-”), from Proto-Indo-European *dwi- (“two-, double-”) (compare Proto-Germanic *twiz- (“twice”), from Proto-Indo-European *dwís (“twice”)), from Proto-Indo-European *dwóh₁ (“two”). Compare twin, twice, two, and see more details at two. Further related to the prefixes bi-, di-, and dis-.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).