---
title: "BIP39 Word #1239: onion — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/onion/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #1239 10011010110 

# onion — BIP39 word #1239

"**onion**" is word #1239 of the 2048 words in the official BIP39 English wordlist, between [one](/bip39-word/one/) and [online](/bip39-word/online/). In a seed phrase it stands for the 11-bit value `10011010110`, decimal index 1238\. 

/ˈʌnjən/  · _noun:_ a round vegetable with a strong smell and many layers 

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

## Binary Representation

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

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

[bracket](/bip39-word/bracket/)[suspect](/bip39-word/suspect/)[river](/bip39-word/river/)[member](/bip39-word/member/)[name](/bip39-word/name/)[paddle](/bip39-word/paddle/)[occur](/bip39-word/occur/)[orange](/bip39-word/orange/)[olympic](/bip39-word/olympic/)[once](/bip39-word/once/)[online](/bip39-word/online/) 

Position

Hex Index

0x4D6

4-Letter Prefix

onio

## About "onion" in BIP39

- "onion" has 5 letters, but the first three, **"oni"**, already identify it, because **"on"** also begins [once](/bip39-word/once/), [one](/bip39-word/one/), [online](/bip39-word/online/) and [only](/bip39-word/only/). Three letters are enough for only 604 of the 2048 words.

## Word #1239 in the Other 9 BIP39 Wordlists

[Czech](/czech/) pobavit 

[French](/french/) météore 

[Italian](/italian/) patologia 

[Japanese](/japanese/) つぶす 

[Korean](/korean/) 외침 

[Portuguese](/portuguese/) mastigar 

[Spanish](/spanish/) niñez 

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

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

## More BIP39 Words Starting with "O"

[ #1235 olympic ](/bip39-word/olympic/)[ #1236 omit ](/bip39-word/omit/)[ #1237 once ](/bip39-word/once/)[ #1238 one ](/bip39-word/one/)[ #1240 online ](/bip39-word/online/)[ #1241 only ](/bip39-word/only/)[ #1242 open ](/bip39-word/open/)[ #1243 opera ](/bip39-word/opera/) 

[View all words starting with "O" ](/bip39-words/o/) 

## Seed phrase, key and recovery guides

- [BIP 157 Client-Side Block Filtering: Compact Filters Explained](/bip-157-client-side-block-filtering/)
- [Bitcoin Core Seed Phrase: Why There Is None and How to Back Up](/bitcoin-core-seed-phrase-backup-guide/)
- [BIP38 Encrypted Private Keys: 6P Format and How to Decrypt](/bip38/)

[ Full BIP39 Wordlist ](/)