--- title: "BIP39 Word #44: air — Seed Phrase Mnemonic Word" url: "https://bip39-phrase.com/bip39-word/air/" language: "en" updated: "2026-10-19T00:00:00+00:00" --- Word #44 00000101011 # air — BIP39 word #44 "**air**" is word #44 of the 2048 words in the official BIP39 English wordlist, between [aim](/bip39-word/aim/) and [airport](/bip39-word/airport/). In a seed phrase it stands for the 11-bit value `00000101011`, decimal index 43\. /eə/ · _noun:_ the invisible mixture of gases that surrounds the earth [Russian](/ru/ "The BIP39 wordlist with Russian translations"): воздух ## Binary Representation Four 1-bits and seven 0-bits; 330 of the 2048 indexes have exactly four 1-bits. One wrong bit turns it into (leftmost bit first): [lyrics](/bip39-word/lyrics/)[earth](/bip39-word/earth/)[century](/bip39-word/century/)[betray](/bip39-word/betray/)[aspect](/bip39-word/aspect/)[accident](/bip39-word/accident/)[alter](/bip39-word/alter/)[afford](/bip39-word/afford/)[album](/bip39-word/album/)[ahead](/bip39-word/ahead/)[aim](/bip39-word/aim/) Position Hex Index 0x02B 4-Letter Prefix air ## About "air" in BIP39 - All three letters of "air" also begin longer words: [airport](/bip39-word/airport/). So "air" cannot be shortened, and a backup that keeps the first four letters of each word stores it as **"air"** but airport as **"airp"**. ## Word #44 in the Other 9 BIP39 Wordlists [Czech](/czech/) bankomat [French](/french/) admettre [Italian](/italian/) aguzzo [Japanese](/japanese/) あらゆる [Korean](/korean/) 강사 [Portuguese](/portuguese/) adentro [Spanish](/spanish/) agitar [Traditional Chinese](/chinese-traditional/) 能 [Simplified Chinese](/chinese-simplified/) 能 ## Similar Words — Check Carefully During Recovery 3 BIP39 words differ from "air" by just a single letter — the most common source of typos when a seed phrase is entered by hand: [aim](/bip39-word/aim/)[hair](/bip39-word/hair/)[pair](/bip39-word/pair/) Read aloud, "air" /eə/ is one sound away from these 8 words: [chair /ʧeə/](/bip39-word/chair/)[eye /aɪ/](/bip39-word/eye/)[pear /peə/](/bip39-word/pear/)[rare /reə/](/bip39-word/rare/)[share /ʃeə/](/bip39-word/share/)[there /ðeə/](/bip39-word/there/)[wear /weə/](/bip39-word/wear/)[where /weə/](/bip39-word/where/) Words sharing the first three letters "air": [airport](/bip39-word/airport/) ## More BIP39 Words Starting with "A" [ #40 agent ](/bip39-word/agent/)[ #41 agree ](/bip39-word/agree/)[ #42 ahead ](/bip39-word/ahead/)[ #43 aim ](/bip39-word/aim/)[ #45 airport ](/bip39-word/airport/)[ #46 aisle ](/bip39-word/aisle/)[ #47 alarm ](/bip39-word/alarm/)[ #48 album ](/bip39-word/album/) [View all words starting with "A" ](/bip39-words/a/) ## Seed phrase, key and recovery guides - [BIP39 vs BIP32 vs BIP44: How the Seed Standards Fit Together](/crypto-seed-standards-bip39-vs-bip32-vs-bip44/) - [How to Memorize a Seed Phrase: Color, Story and Palace Methods](/seed-phrase-memory/) - [What Is a Seed Phrase? How a Recovery Phrase Works](/recovery-seed-phrase-guide/) [ Full BIP39 Wordlist ](/)