---
title: "BIP39 Word #1166: museum — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/museum/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #1166 10010001101 

# museum — BIP39 word #1166

"**museum**" is word #1166 of the 2048 words in the official BIP39 English wordlist, between [muscle](/bip39-word/muscle/) and [mushroom](/bip39-word/mushroom/). In a seed phrase it stands for the 11-bit value `10010001101`, decimal index 1165\. 

/mju(ː)ˈzɪəm/  · _noun:_ a building where objects of historical or artistic interest are displayed 

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

## 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):

[balance](/bip39-word/balance/)[spider](/bip39-word/spider/)[random](/bip39-word/random/)[like](/bip39-word/like/)[often](/bip39-word/often/)[noble](/bip39-word/noble/)[neck](/bip39-word/neck/)[mouse](/bip39-word/mouse/)[muffin](/bip39-word/muffin/)[music](/bip39-word/music/)[muscle](/bip39-word/muscle/) 

Position

Hex Index

0x48D

4-Letter Prefix

muse

## About "museum" in BIP39

- "museum" has 6 letters, but the first four, **"muse"**, already identify it, because **"mus"** also begins [muscle](/bip39-word/muscle/), [mushroom](/bip39-word/mushroom/), [music](/bip39-word/music/) and [must](/bip39-word/must/).
- **"muse"** is unique only within the English list: it also begins museo in the [Spanish list](/spanish/), museu in the [Portuguese list](/portuguese/) and muset in the [Czech list](/czech/), so a four-letter backup should say which list it uses.
- "museum" appears in one of the 24 official English [test vectors](https://github.com/trezor/python-mnemonic/blob/master/vectors.json) of BIP39: vector #21 (word 16 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.

Official test vector #21

[all](/bip39-word/all/) [hour](/bip39-word/hour/) [make](/bip39-word/make/) [first](/bip39-word/first/) [leader](/bip39-word/leader/) [extend](/bip39-word/extend/) [hole](/bip39-word/hole/) [alien](/bip39-word/alien/) [behind](/bip39-word/behind/) [guard](/bip39-word/guard/) [gospel](/bip39-word/gospel/) [lava](/bip39-word/lava/) [path](/bip39-word/path/) [output](/bip39-word/output/) [census](/bip39-word/census/) museum [junior](/bip39-word/junior/) [mass](/bip39-word/mass/) [reopen](/bip39-word/reopen/) [famous](/bip39-word/famous/) [sing](/bip39-word/sing/) [advance](/bip39-word/advance/) [salt](/bip39-word/salt/) [reform](/bip39-word/reform/) 

## Word #1166 in the Other 9 BIP39 Wordlists

[Czech](/czech/) panika 

[French](/french/) loyal 

[Italian](/italian/) opposto 

[Japanese](/japanese/) たんまつ 

[Korean](/korean/) 열차 

[Portuguese](/portuguese/) linda 

[Spanish](/spanish/) molde 

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

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

## Similar Words — Check Carefully During Recovery

Words sharing the first three letters "mus":

[muscle](/bip39-word/muscle/)[mushroom](/bip39-word/mushroom/)[music](/bip39-word/music/)[must](/bip39-word/must/) 

## More BIP39 Words Starting with "M"

[ #1162 muffin ](/bip39-word/muffin/)[ #1163 mule ](/bip39-word/mule/)[ #1164 multiply ](/bip39-word/multiply/)[ #1165 muscle ](/bip39-word/muscle/)[ #1167 mushroom ](/bip39-word/mushroom/)[ #1168 music ](/bip39-word/music/)[ #1169 must ](/bip39-word/must/)[ #1170 mutual ](/bip39-word/mutual/) 

[View all words starting with "M" ](/bip39-words/m/) 

## Seed phrase, key and recovery guides

- [BIP-444 (Now BIP 110): Reduced Data Temporary Softfork Explained](/bip-444-reduced-data-temporary-softfork/)
- [Metal Seed Phrase Backup: Steel Plates, Tiles and Tests](/metal-seed-phrase-backup/)
- [Invalid Seed Phrase? How to Find and Fix a Wrong Word (BIP39)](/how-to-fix-seed-phrase-errors/)

[ Full BIP39 Wordlist ](/)