---
title: "BIP39 Word #4: about — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/about/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #4 00000000011 

# about — BIP39 word #4

"**about**" is word #4 of the 2048 words in the official BIP39 English wordlist, between [able](/bip39-word/able/) and [above](/bip39-word/above/). In a seed phrase it stands for the 11-bit value `00000000011`, decimal index 3\. 

/əˈbaʊt/  · _preposition:_ on the subject of or concerning something 

[Russian](/ru/ "The BIP39 wordlist with Russian translations"): о, около 

## Binary Representation

Two 1-bits and nine 0-bits; 55 of the 2048 indexes have exactly two 1-bits.

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

[lesson](/bip39-word/lesson/)[document](/bip39-word/document/)[call](/bip39-word/call/)[away](/bip39-word/away/)[anchor](/bip39-word/anchor/)[afford](/bip39-word/afford/)[act](/bip39-word/act/)[accident](/bip39-word/accident/)[abstract](/bip39-word/abstract/)[ability](/bip39-word/ability/)[able](/bip39-word/able/) 

Position

Hex Index

0x003

4-Letter Prefix

abou

## About "about" in BIP39

- "about" has 5 letters, but the first four, **"abou"**, already identify it, because **"abo"** also begins [above](/bip39-word/above/).
- **"abou"** is unique only within the English list: it also begins aboutir in the [French list](/french/), so a four-letter backup should say which list it uses.
- "about" appears in one of the 24 official English [test vectors](https://github.com/trezor/python-mnemonic/blob/master/vectors.json) of BIP39: vector #1 (word 12 of 12). Every official vector passes the [checksum checker](/bip39-checksum-checker/), and [How BIP39 works](/how-bip39-works/) shows how the entropy turns into such words. As the last word of vector #1, its final 4 bits, **0011**, are the checksum of the 12-word phrase.

Official test vector #1

[abandon](/bip39-word/abandon/) [abandon](/bip39-word/abandon/) [abandon](/bip39-word/abandon/) [abandon](/bip39-word/abandon/) [abandon](/bip39-word/abandon/) [abandon](/bip39-word/abandon/) [abandon](/bip39-word/abandon/) [abandon](/bip39-word/abandon/) [abandon](/bip39-word/abandon/) [abandon](/bip39-word/abandon/) [abandon](/bip39-word/abandon/) about 

## Word #4 in the Other 9 BIP39 Wordlists

[Czech](/czech/) agrese 

[French](/french/) abeille 

[Italian](/italian/) abete 

[Japanese](/japanese/) あおぞら 

[Korean](/korean/) 가능 

[Portuguese](/portuguese/) abater 

[Spanish](/spanish/) abierto 

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

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

## Similar Words — Check Carefully During Recovery

Words sharing the first three letters "abo":

[above](/bip39-word/above/) 

## More BIP39 Words Starting with "A"

[ #1 abandon ](/bip39-word/abandon/)[ #2 ability ](/bip39-word/ability/)[ #3 able ](/bip39-word/able/)[ #5 above ](/bip39-word/above/)[ #6 absent ](/bip39-word/absent/)[ #7 absorb ](/bip39-word/absorb/)[ #8 abstract ](/bip39-word/abstract/)[ #136 axis ](/bip39-word/axis/) 

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

## Seed phrase, key and recovery guides

- [Private Key Export: MetaMask, Trust Wallet, Ledger, Electrum](/convert-seed-phrase-to-private-key-guide/)
- [How to Create a Seed Phrase: Step-by-Step Guide and Examples](/create-a-seed-phrase/)
- [BIP 44 – Multi-Account Hierarchy for Deterministic Wallets](/bip-44-multi-account-hierarchy-for-deterministic-wallets/)

[ Full BIP39 Wordlist ](/)