---
title: "BIP39 Word #867: hobby — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/hobby/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #867 01101100010 

# hobby — BIP39 word #867

"**hobby**" is word #867 of the 2048 words in the official BIP39 English wordlist, between [history](/bip39-word/history/) and [hockey](/bip39-word/hockey/). In a seed phrase it stands for the 11-bit value `01101100010`, decimal index 866\. 

/ˈhɒbi/  · _noun:_ an activity done regularly for pleasure in your free time 

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

## 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):

[unable](/bip39-word/unable/)[clump](/bip39-word/clump/)[era](/bip39-word/era/)[labor](/bip39-word/labor/)[gold](/bip39-word/gold/)[hair](/bip39-word/hair/)[hour](/bip39-word/hour/)[hood](/bip39-word/hood/)[holiday](/bip39-word/holiday/)[hire](/bip39-word/hire/)[hockey](/bip39-word/hockey/) 

Position

Hex Index

0x362

4-Letter Prefix

hobb

## About "hobby" in BIP39

- "hobby" has 5 letters, but the first three, **"hob"**, already identify it, because **"ho"** also begins 17 other words, among them [hockey](/bip39-word/hockey/), [hold](/bip39-word/hold/), [hole](/bip39-word/hole/) and [holiday](/bip39-word/holiday/). Three letters are enough for only 604 of the 2048 words.
- "hobby" appears in one of the 24 official English [test vectors](https://github.com/trezor/python-mnemonic/blob/master/vectors.json) of BIP39: vector #18 (word 19 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 #18

[panda](/bip39-word/panda/) [eyebrow](/bip39-word/eyebrow/) [bullet](/bip39-word/bullet/) [gorilla](/bip39-word/gorilla/) [call](/bip39-word/call/) [smoke](/bip39-word/smoke/) [muffin](/bip39-word/muffin/) [taste](/bip39-word/taste/) [mesh](/bip39-word/mesh/) [discover](/bip39-word/discover/) [soft](/bip39-word/soft/) [ostrich](/bip39-word/ostrich/) [alcohol](/bip39-word/alcohol/) [speed](/bip39-word/speed/) [nation](/bip39-word/nation/) [flash](/bip39-word/flash/) [devote](/bip39-word/devote/) [level](/bip39-word/level/) hobby [quick](/bip39-word/quick/) [inner](/bip39-word/inner/) [drive](/bip39-word/drive/) [ghost](/bip39-word/ghost/) [inside](/bip39-word/inside/) 

## Word #867 in the Other 9 BIP39 Wordlists

[Czech](/czech/) mokro 

[French](/french/) frégate 

[Italian](/italian/) iride 

[Japanese](/japanese/) しんか 

[Korean](/korean/) 소나기 

[Portuguese](/portuguese/) fosco 

[Spanish](/spanish/) higiene 

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

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

## Similar Words — Check Carefully During Recovery

Read aloud, "hobby" /ˈhɒbi/ is one sound away from this word: 

[hockey /ˈhɒki/](/bip39-word/hockey/) 

## More BIP39 Words Starting with "H"

[ #863 hint ](/bip39-word/hint/)[ #864 hip ](/bip39-word/hip/)[ #865 hire ](/bip39-word/hire/)[ #866 history ](/bip39-word/history/)[ #868 hockey ](/bip39-word/hockey/)[ #869 hold ](/bip39-word/hold/)[ #870 hole ](/bip39-word/hole/)[ #871 holiday ](/bip39-word/holiday/) 

[View all words starting with "H" ](/bip39-words/h/) 

## Seed phrase, key and recovery guides

- [Cold Sharding: Splitting a Private Key Into Offline Shamir Shares](/cold-sharding-method-private-key-storage-strategy/)
- [Test Your Wallet Backup: A Self-Audit of Your Seed Phrase](/hack-own-crypto-wallet/)
- [EVM Address Format Explained: Structure & Usage](/format-evm-addresses/)

[ Full BIP39 Wordlist ](/)