---
title: "BIP39 Word #1898: unfold — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/unfold/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #1898 11101101001 

# unfold — BIP39 word #1898

"**unfold**" is word #1898 of the 2048 words in the official BIP39 English wordlist, between [unfair](/bip39-word/unfair/) and [unhappy](/bip39-word/unhappy/). In a seed phrase it stands for the 11-bit value `11101101001`, decimal index 1897\. 

/ʌnˈfəʊld/  · _verb:_ to open out something folded, or to develop gradually 

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

## Binary Representation

Seven 1-bits and four 0-bits; 330 of the 2048 indexes have exactly seven 1-bits.

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

[honey](/bip39-word/honey/)[pudding](/bip39-word/pudding/)[snake](/bip39-word/snake/)[wood](/bip39-word/wood/)[topple](/bip39-word/topple/)[truck](/bip39-word/truck/)[upset](/bip39-word/upset/)[umbrella](/bip39-word/umbrella/)[unit](/bip39-word/unit/)[uniform](/bip39-word/uniform/)[unfair](/bip39-word/unfair/) 

Position

Hex Index

0x769

4-Letter Prefix

unfo

## About "unfold" in BIP39

- "unfold" has 6 letters, but the first four, **"unfo"**, already identify it, because **"unf"** also begins [unfair](/bip39-word/unfair/).
- "unfold" appears in one of the 24 official English [test vectors](https://github.com/trezor/python-mnemonic/blob/master/vectors.json) of BIP39: vector #24 (word 24 of 24). Every official vector passes the [checksum checker](/bip39-checksum-checker/), and [How BIP39 works](/how-bip39-works/) shows how the entropy turns into such words. As the last word of vector #24, its final 8 bits, **01101001**, are the checksum of the 24-word phrase.

Official test vector #24

[void](/bip39-word/void/) [come](/bip39-word/come/) [effort](/bip39-word/effort/) [suffer](/bip39-word/suffer/) [camp](/bip39-word/camp/) [survey](/bip39-word/survey/) [warrior](/bip39-word/warrior/) [heavy](/bip39-word/heavy/) [shoot](/bip39-word/shoot/) [primary](/bip39-word/primary/) [clutch](/bip39-word/clutch/) [crush](/bip39-word/crush/) [open](/bip39-word/open/) [amazing](/bip39-word/amazing/) [screen](/bip39-word/screen/) [patrol](/bip39-word/patrol/) [group](/bip39-word/group/) [space](/bip39-word/space/) [point](/bip39-word/point/) [ten](/bip39-word/ten/) [exist](/bip39-word/exist/) [slush](/bip39-word/slush/) [involve](/bip39-word/involve/) unfold 

## Word #1898 in the Other 9 BIP39 Wordlists

[Czech](/czech/) vypadat 

[French](/french/) tornade 

[Italian](/italian/) trono 

[Japanese](/japanese/) めんどう 

[Korean](/korean/) 하지만 

[Portuguese](/portuguese/) tonel 

[Spanish](/spanish/) traje 

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

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

## Similar Words — Check Carefully During Recovery

Words sharing the first three letters "unf":

[unfair](/bip39-word/unfair/) 

## More BIP39 Words Starting with "U"

[ #1894 uncover ](/bip39-word/uncover/)[ #1895 under ](/bip39-word/under/)[ #1896 undo ](/bip39-word/undo/)[ #1897 unfair ](/bip39-word/unfair/)[ #1899 unhappy ](/bip39-word/unhappy/)[ #1900 uniform ](/bip39-word/uniform/)[ #1901 unique ](/bip39-word/unique/)[ #1902 unit ](/bip39-word/unit/) 

[View all words starting with "U" ](/bip39-words/u/) 

## Seed phrase, key and recovery guides

- [BIP39 Passphrase: How the 25th Word Creates a Hidden Wallet](/bip39-passphrase/)
- [Is My Seed Phrase Compromised? Signs and What to Do Next](/bip39-seed-phrase-compromise/)
- [BIP 32 Explained: Hierarchical Deterministic Wallets](/bip-32/)

[ Full BIP39 Wordlist ](/)