---
title: "BIP39 Word #1733: sudden — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/sudden/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #1733 11011000100 

# sudden — BIP39 word #1733

"**sudden**" is word #1733 of the 2048 words in the official BIP39 English wordlist, between [such](/bip39-word/such/) and [suffer](/bip39-word/suffer/). In a seed phrase it stands for the 11-bit value `11011000100`, decimal index 1732\. 

/ˈsʌdn/  · _adjective:_ happening quickly and unexpectedly 

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

## 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):

[flat](/bip39-word/flat/)[obtain](/bip39-word/obtain/)[weasel](/bip39-word/weasel/)[silk](/bip39-word/silk/)[spatial](/bip39-word/spatial/)[symptom](/bip39-word/symptom/)[surround](/bip39-word/surround/)[sunset](/bip39-word/sunset/)[submit](/bip39-word/submit/)[sugar](/bip39-word/sugar/)[suffer](/bip39-word/suffer/) 

Position

Hex Index

0x6C4

4-Letter Prefix

sudd

## About "sudden" in BIP39

- "sudden" has 6 letters, but the first three, **"sud"**, already identify it, because **"su"** also begins 24 other words, among them [subject](/bip39-word/subject/), [submit](/bip39-word/submit/), [subway](/bip39-word/subway/) and [success](/bip39-word/success/). Three letters are enough for only 604 of the 2048 words.

## Word #1733 in the Other 9 BIP39 Wordlists

[Czech](/czech/) tvorba 

[French](/french/) séance 

[Italian](/italian/) speranza 

[Japanese](/japanese/) へいげん 

[Korean](/korean/) 추천 

[Portuguese](/portuguese/) salvador 

[Spanish](/spanish/) símbolo 

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

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

## Similar Words — Check Carefully During Recovery

Read aloud, "sudden" /ˈsʌdn/ is one sound away from this word: 

[sun /sʌn/](/bip39-word/sun/) 

## More BIP39 Words Starting with "S"

[ #1729 submit ](/bip39-word/submit/)[ #1730 subway ](/bip39-word/subway/)[ #1731 success ](/bip39-word/success/)[ #1732 such ](/bip39-word/such/)[ #1734 suffer ](/bip39-word/suffer/)[ #1735 sugar ](/bip39-word/sugar/)[ #1736 suggest ](/bip39-word/suggest/)[ #1737 suit ](/bip39-word/suit/) 

[View all words starting with "S" ](/bip39-words/s/) 

## Seed phrase, key and recovery guides

- [How to View & Recover Bitcoin Wallet.dat Content](/how-to-view-and-recover-bitcoin-wallet-dat-content/)
- [Bitcoin Private Key Format: WIF, Base58 and Hex Explained](/private-key-btc/)
- [How to Encrypt a Seed Phrase: AES, XOR and Steganography](/seed-phrase-encrypting-with-aes-xor-and-steganography/)

[ Full BIP39 Wordlist ](/)