---
title: "BIP39 Word #1211: nuclear — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/nuclear/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #1211 10010111010 

# nuclear — BIP39 word #1211

"**nuclear**" is word #1211 of the 2048 words in the official BIP39 English wordlist, between [now](/bip39-word/now/) and [number](/bip39-word/number/). In a seed phrase it stands for the 11-bit value `10010111010`, decimal index 1210\. 

/ˈnjuːklɪə/  · _adjective:_ relating to the energy released when atomic nuclei split or join 

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

## 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):

[blanket](/bip39-word/blanket/)[struggle](/bip39-word/struggle/)[resemble](/bip39-word/resemble/)[mansion](/bip39-word/mansion/)[palm](/bip39-word/palm/)[nation](/bip39-word/nation/)[next](/bip39-word/next/)[north](/bip39-word/north/)[oak](/bip39-word/oak/)[novel](/bip39-word/novel/)[number](/bip39-word/number/) 

Position

Hex Index

0x4BA

4-Letter Prefix

nucl

## About "nuclear" in BIP39

- "nuclear" has 7 letters, but the first three, **"nuc"**, already identify it, because **"nu"** also begins [number](/bip39-word/number/), [nurse](/bip39-word/nurse/) and [nut](/bip39-word/nut/). Three letters are enough for only 604 of the 2048 words.
- **"nucl"** is unique only within the English list: it also begins nucleo in the [Italian list](/italian/), so a four-letter backup should say which list it uses.

## Word #1211 in the Other 9 BIP39 Wordlists

[Czech](/czech/) pisatel 

[French](/french/) matière 

[Italian](/italian/) padella 

[Japanese](/japanese/) ちりがみ 

[Korean](/korean/) 오징어 

[Portuguese](/portuguese/) mamoeiro 

[Spanish](/spanish/) nadar 

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

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

## More BIP39 Words Starting with "N"

[ #1174 naive ](/bip39-word/naive/)[ #1207 nothing ](/bip39-word/nothing/)[ #1208 notice ](/bip39-word/notice/)[ #1209 novel ](/bip39-word/novel/)[ #1210 now ](/bip39-word/now/)[ #1212 number ](/bip39-word/number/)[ #1213 nurse ](/bip39-word/nurse/)[ #1214 nut ](/bip39-word/nut/) 

[View all words starting with "N" ](/bip39-words/n/) 

## Seed phrase, key and recovery guides

- [BIP 44 – Multi-Account Hierarchy for Deterministic Wallets](/bip-44-multi-account-hierarchy-for-deterministic-wallets/)
- [Electrum Seed vs BIP39: Why Other Wallets Reject It](/electrum-seed-vs-bip39/)
- [Cold Sharding: Splitting a Private Key Into Offline Shamir Shares](/cold-sharding-method-private-key-storage-strategy/)

[ Full BIP39 Wordlist ](/)