---
title: "BIP39 Word #906: illness — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/illness/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #906 01110001001 

# illness — BIP39 word #906

"**illness**" is word #906 of the 2048 words in the official BIP39 English wordlist, between [illegal](/bip39-word/illegal/) and [image](/bip39-word/image/). In a seed phrase it stands for the 11-bit value `01110001001`, decimal index 905\. 

/ˈɪlnɪs/  · _noun:_ a disease or period of being sick 

[Russian](/ru/ "The BIP39 wordlist with Russian translations"): болезнь 

## Binary Representation

Five 1-bits and six 0-bits; 462 of the 2048 indexes have exactly five 1-bits.

One wrong bit turns it into (leftmost bit first):

[van](/bip39-word/van/)[couple](/bip39-word/couple/)[eye](/bip39-word/eye/)[gentle](/bip39-word/gentle/)[junior](/bip39-word/junior/)[inside](/bip39-word/inside/)[industry](/bip39-word/industry/)[ice](/bip39-word/ice/)[immune](/bip39-word/immune/)[imitate](/bip39-word/imitate/)[illegal](/bip39-word/illegal/) 

Position

Hex Index

0x389

4-Letter Prefix

illn

## About "illness" in BIP39

- "illness" has 7 letters, but the first four, **"illn"**, already identify it, because **"ill"** also begins [ill](/bip39-word/ill/) and [illegal](/bip39-word/illegal/).
- Its first letters also spell another BIP39 word, [ill](/bip39-word/ill/). Write "illness" out in full: cut short, it turns into a different valid word.

## Word #906 in the Other 9 BIP39 Wordlists

[Czech](/czech/) nadace 

[French](/french/) gentil 

[Italian](/italian/) lesivo 

[Japanese](/japanese/) ずぶぬれ 

[Korean](/korean/) 수단 

[Portuguese](/portuguese/) garimpo 

[Spanish](/spanish/) ilusión 

[Traditional Chinese](/chinese-traditional/) 氫 

[Simplified Chinese](/chinese-simplified/) 氢 

## Similar Words — Check Carefully During Recovery

Words sharing the first three letters "ill":

[ill](/bip39-word/ill/)[illegal](/bip39-word/illegal/) 

## More BIP39 Words Starting with "I"

[ #902 idle ](/bip39-word/idle/)[ #903 ignore ](/bip39-word/ignore/)[ #904 ill ](/bip39-word/ill/)[ #905 illegal ](/bip39-word/illegal/)[ #907 image ](/bip39-word/image/)[ #908 imitate ](/bip39-word/imitate/)[ #909 immense ](/bip39-word/immense/)[ #910 immune ](/bip39-word/immune/) 

[View all words starting with "I" ](/bip39-words/i/) 

## Seed phrase, key and recovery guides

- [How to Memorize a Seed Phrase: Color, Story and Palace Methods](/seed-phrase-memory/)
- [What Is a Seed Phrase? How a Recovery Phrase Works](/recovery-seed-phrase-guide/)
- [What Is a Bitcoin Address and How Does It Work?](/what-is-a-bitcoin-address/)

[ Full BIP39 Wordlist ](/)