---
title: "BIP39 Word #308: chapter — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/chapter/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #308 00100110011 

# chapter — BIP39 word #308

"**chapter**" is word #308 of the 2048 words in the official BIP39 English wordlist, between [chaos](/bip39-word/chaos/) and [charge](/bip39-word/charge/). In a seed phrase it stands for the 11-bit value `00100110011`, decimal index 307\. 

/ˈʧæptə/  · _noun:_ a main division of a book, usually numbered 

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

## 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):

[please](/bip39-word/please/)[grid](/bip39-word/grid/)[all](/bip39-word/all/)[cushion](/bip39-word/cushion/)[common](/bip39-word/common/)[carbon](/bip39-word/carbon/)[caught](/bip39-word/caught/)[cherry](/bip39-word/cherry/)[cheap](/bip39-word/cheap/)[change](/bip39-word/change/)[chaos](/bip39-word/chaos/) 

Position

Hex Index

0x133

4-Letter Prefix

chap

## About "chapter" in BIP39

- "chapter" has 7 letters, but the first four, **"chap"**, already identify it, because **"cha"** also begins 8 other words, among them [chair](/bip39-word/chair/), [chalk](/bip39-word/chalk/), [champion](/bip39-word/champion/) and [change](/bip39-word/change/).
- **"chap"** is unique only within the English list: it also begins chapitre in the [French list](/french/), chapa in the [Spanish list](/spanish/), chapada in the [Portuguese list](/portuguese/) and chapadlo in the [Czech list](/czech/), so a four-letter backup should say which list it uses.

## Word #308 in the Other 9 BIP39 Wordlists

[Czech](/czech/) dynamit 

[French](/french/) cachette 

[Italian](/italian/) carapace 

[Japanese](/japanese/) おろす 

[Korean](/korean/) 내용 

[Portuguese](/portuguese/) bobagem 

[Spanish](/spanish/) caer 

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

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

## Similar Words — Check Carefully During Recovery

Words sharing the first three letters "cha":

[chair](/bip39-word/chair/)[chalk](/bip39-word/chalk/)[champion](/bip39-word/champion/)[change](/bip39-word/change/)[chaos](/bip39-word/chaos/)[charge](/bip39-word/charge/)[chase](/bip39-word/chase/)[chat](/bip39-word/chat/) 

## More BIP39 Words Starting with "C"

[ #304 chalk ](/bip39-word/chalk/)[ #305 champion ](/bip39-word/champion/)[ #306 change ](/bip39-word/change/)[ #307 chaos ](/bip39-word/chaos/)[ #309 charge ](/bip39-word/charge/)[ #310 chase ](/bip39-word/chase/)[ #311 chat ](/bip39-word/chat/)[ #312 cheap ](/bip39-word/cheap/) 

[View all words starting with "C" ](/bip39-words/c/) 

## Seed phrase, key and recovery guides

- [How to Encrypt a Seed Phrase: AES, XOR and Steganography](/seed-phrase-encrypting-with-aes-xor-and-steganography/)
- [Bitcoin Improvement Proposal (BIP): Process and Deployed BIP List](/bitcoin-improvement-proposal/)
- [TON Seed Phrase: 24-Word Format vs 12-Word BIP39 Phrases](/seed-phrase-format-for-ton-wallets/)

[ Full BIP39 Wordlist ](/)