---
title: "BIP39 Word #50: alert — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/alert/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #50 00000110001 

# alert — BIP39 word #50

"**alert**" is word #50 of the 2048 words in the official BIP39 English wordlist, between [alcohol](/bip39-word/alcohol/) and [alien](/bip39-word/alien/). In a seed phrase it stands for the 11-bit value `00000110001`, decimal index 49\. 

/əˈlɜːt/  · _adjective:_ watchful and quick to notice and respond to things 

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

## Binary Representation

Three 1-bits and eight 0-bits; 165 of the 2048 indexes have exactly three 1-bits.

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

[mail](/bip39-word/mail/)[economy](/bip39-word/economy/)[change](/bip39-word/change/)[bike](/bip39-word/bike/)[athlete](/bip39-word/athlete/)[acquire](/bip39-word/acquire/)[aerobic](/bip39-word/aerobic/)[already](/bip39-word/already/)[allow](/bip39-word/allow/)[all](/bip39-word/all/)[alcohol](/bip39-word/alcohol/) 

Position

Hex Index

0x031

4-Letter Prefix

aler

## About "alert" in BIP39

- "alert" has 5 letters, but the first three, **"ale"**, already identify it, because **"al"** also begins 14 other words, among them [alarm](/bip39-word/alarm/), [album](/bip39-word/album/), [alcohol](/bip39-word/alcohol/) and [alien](/bip39-word/alien/). Three letters are enough for only 604 of the 2048 words.
- **"aler"** is unique only within the English list: it also begins alerte in the [French list](/french/), alerta in the [Spanish list](/spanish/) and alertar in the [Portuguese list](/portuguese/), so a four-letter backup should say which list it uses.

## Word #50 in the Other 9 BIP39 Wordlists

[Czech](/czech/) baterka 

[French](/french/) adroit 

[Italian](/italian/) albume 

[Japanese](/japanese/) あんがい 

[Korean](/korean/) 강조 

[Portuguese](/portuguese/) adiante 

[Spanish](/spanish/) agua 

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

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

## More BIP39 Words Starting with "A"

[ #46 aisle ](/bip39-word/aisle/)[ #47 alarm ](/bip39-word/alarm/)[ #48 album ](/bip39-word/album/)[ #49 alcohol ](/bip39-word/alcohol/)[ #51 alien ](/bip39-word/alien/)[ #52 all ](/bip39-word/all/)[ #53 alley ](/bip39-word/alley/)[ #54 allow ](/bip39-word/allow/) 

[View all words starting with "A" ](/bip39-words/a/) 

## Seed phrase, key and recovery guides

- [BIP 32 Explained: Hierarchical Deterministic Wallets](/bip-32/)
- [Can You Guess a Seed Phrase? Probability and Real Risks](/can-you-guess-a-seed-phrase-probability-and-real-risks/)
- [Crypto Inheritance: How to Pass On Your Seed Phrase](/crypto-inheritance/)

[ Full BIP39 Wordlist ](/)