---
title: "BIP39 Word #34: aerobic — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/aerobic/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #34 00000100001 

# aerobic — BIP39 word #34

"**aerobic**" is word #34 of the 2048 words in the official BIP39 English wordlist, between [advice](/bip39-word/advice/) and [affair](/bip39-word/affair/). In a seed phrase it stands for the 11-bit value `00000100001`, decimal index 33\. 

/eəˈrəʊbɪk/  · _adjective:_ relating to exercise that strengthens the heart and lungs 

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

## 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):

[loud](/bip39-word/loud/)[during](/bip39-word/during/)[category](/bip39-word/category/)[before](/bip39-word/before/)[around](/bip39-word/around/)[ability](/bip39-word/ability/)[alert](/bip39-word/alert/)[ahead](/bip39-word/ahead/)[again](/bip39-word/again/)[afford](/bip39-word/afford/)[advice](/bip39-word/advice/) 

Position

Hex Index

0x021

4-Letter Prefix

aero

## About "aerobic" in BIP39

- Two letters are enough: no other BIP39 word begins with **"ae"**, which makes "aerobic" one of only 34 words that can be told apart this early.
- **"aero"** is unique only within the English list: it also begins aeronave in the [Portuguese list](/portuguese/), so a four-letter backup should say which list it uses.

## Word #34 in the Other 9 BIP39 Wordlists

[Czech](/czech/) bagr 

[French](/french/) acquérir 

[Italian](/italian/) africano 

[Japanese](/japanese/) あまやかす 

[Korean](/korean/) 감수성 

[Portuguese](/portuguese/) aclamar 

[Spanish](/spanish/) adoptar 

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

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

## More BIP39 Words Starting with "A"

[ #30 admit ](/bip39-word/admit/)[ #31 adult ](/bip39-word/adult/)[ #32 advance ](/bip39-word/advance/)[ #33 advice ](/bip39-word/advice/)[ #35 affair ](/bip39-word/affair/)[ #36 afford ](/bip39-word/afford/)[ #37 afraid ](/bip39-word/afraid/)[ #38 again ](/bip39-word/again/) 

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

## Seed phrase, key and recovery guides

- [Is My Seed Phrase Compromised? Signs and What to Do Next](/bip39-seed-phrase-compromise/)
- [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/)

[ Full BIP39 Wordlist ](/)