---
title: "BIP39 Word #1559: security — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/security/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #1559 11000010110 

# security — BIP39 word #1559

"**security**" is word #1559 of the 2048 words in the official BIP39 English wordlist, between [section](/bip39-word/section/) and [seed](/bip39-word/seed/). In a seed phrase it stands for the 11-bit value `11000010110`, decimal index 1558\. 

/sɪˈkjʊərɪti/  · _noun:_ the state of being free from danger, or measures to ensure it 

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

## 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):

[drift](/bip39-word/drift/)[lizard](/bip39-word/lizard/)[tissue](/bip39-word/tissue/)[spot](/bip39-word/spot/)[skull](/bip39-word/skull/)[short](/bip39-word/short/)[school](/bip39-word/school/)[sense](/bip39-word/sense/)[seat](/bip39-word/seat/)[secret](/bip39-word/secret/)[seed](/bip39-word/seed/) 

Position

Hex Index

0x616

4-Letter Prefix

secu

## About "security" in BIP39

- "security" has 8 letters, but the first four, **"secu"**, already identify it, because **"sec"** also begins [second](/bip39-word/second/), [secret](/bip39-word/secret/) and [section](/bip39-word/section/).
- **"secu"** is unique only within the English list: it also begins secular in the [Portuguese list](/portuguese/), so a four-letter backup should say which list it uses.

## Word #1559 in the Other 9 BIP39 Wordlists

[Czech](/czech/) smilstvo 

[French](/french/) promener 

[Italian](/italian/) sbloccato 

[Japanese](/japanese/) ぱそこん 

[Korean](/korean/) 존재 

[Portuguese](/portuguese/) prezar 

[Spanish](/spanish/) realidad 

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

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

## Similar Words — Check Carefully During Recovery

Words sharing the first three letters "sec":

[second](/bip39-word/second/)[secret](/bip39-word/secret/)[section](/bip39-word/section/) 

## More BIP39 Words Starting with "S"

[ #1555 seat ](/bip39-word/seat/)[ #1556 second ](/bip39-word/second/)[ #1557 secret ](/bip39-word/secret/)[ #1558 section ](/bip39-word/section/)[ #1560 seed ](/bip39-word/seed/)[ #1561 seek ](/bip39-word/seek/)[ #1562 segment ](/bip39-word/segment/)[ #1563 select ](/bip39-word/select/) 

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

## Seed phrase, key and recovery guides

- [What Is BIP39? The Standard Behind Seed Phrases](/bip39-the-foundation-of-crypto-wallet-security/)
- [Seed Phrase Examples: 12, 18 and 24 BIP39 Mnemonic Phrases](/mnemonic-words-examples-for-crypto-security-bip39/)
- [How to Protect Your Crypto Wallet from Phishing](/protect-crypto-wallet-from-phishing/)

[ Full BIP39 Wordlist ](/)