--- title: "BIP39 Word #670: father — Seed Phrase Mnemonic Word" url: "https://bip39-phrase.com/bip39-word/father/" language: "en" updated: "2026-10-19T00:00:00+00:00" --- Word #670 01010011101 # father — BIP39 word #670 "**father**" is word #670 of the 2048 words in the official BIP39 English wordlist, between [fatal](/bip39-word/fatal/) and [fatigue](/bip39-word/fatigue/). In a seed phrase it stands for the 11-bit value `01010011101`, decimal index 669\. /ˈfɑːðə/ · _noun:_ a man in relation to his child or children [Russian](/ru/ "The BIP39 wordlist with Russian translations"): отец ## Binary Representation Six 1-bits and five 0-bits; 462 of the 2048 indexes have exactly six 1-bits. One wrong bit turns it into (leftmost bit first): [squirrel](/bip39-word/squirrel/)[beauty](/bip39-word/beauty/)[inhale](/bip39-word/inhale/)[dry](/bip39-word/dry/)[forum](/bip39-word/forum/)[fish](/bip39-word/fish/)[faculty](/bip39-word/faculty/)[famous](/bip39-word/famous/)[farm](/bip39-word/farm/)[fault](/bip39-word/fault/)[fatal](/bip39-word/fatal/) Position Hex Index 0x29D 4-Letter Prefix fath ## About "father" in BIP39 - "father" has 6 letters, but the first four, **"fath"**, already identify it, because **"fat"** also begins [fat](/bip39-word/fat/), [fatal](/bip39-word/fatal/) and [fatigue](/bip39-word/fatigue/). - Its first letters also spell another BIP39 word, [fat](/bip39-word/fat/). Write "father" out in full: cut short, it turns into a different valid word. ## Word #670 in the Other 9 BIP39 Wordlists [Czech](/czech/) krasopis [French](/french/) énergie [Italian](/italian/) fluoro [Japanese](/japanese/) ごまあぶら [Korean](/korean/) 본래 [Portuguese](/portuguese/) eleger [Spanish](/spanish/) extremo [Traditional Chinese](/chinese-traditional/) 令 [Simplified Chinese](/chinese-simplified/) 令 ## Similar Words — Check Carefully During Recovery 2 BIP39 words differ from "father" by just a single letter — the most common source of typos when a seed phrase is entered by hand: [gather](/bip39-word/gather/)[rather](/bip39-word/rather/) Words sharing the first three letters "fat": [fat](/bip39-word/fat/)[fatal](/bip39-word/fatal/)[fatigue](/bip39-word/fatigue/) ## More BIP39 Words Starting with "F" [ #666 farm ](/bip39-word/farm/)[ #667 fashion ](/bip39-word/fashion/)[ #668 fat ](/bip39-word/fat/)[ #669 fatal ](/bip39-word/fatal/)[ #671 fatigue ](/bip39-word/fatigue/)[ #672 fault ](/bip39-word/fault/)[ #673 favorite ](/bip39-word/favorite/)[ #674 feature ](/bip39-word/feature/) [View all words starting with "F" ](/bip39-words/f/) ## Seed phrase, key and recovery guides - [Private Key QR Code Risks: Why Online Generators Are Unsafe](/qr-code-private-key-security-risks/) - [Seed Phrase Formats by Network: BIP39 and the Exceptions](/seed-phrase-formats-by-network/) - [BIP39 vs BIP32 vs BIP44: How the Seed Standards Fit Together](/crypto-seed-standards-bip39-vs-bip32-vs-bip44/) [ Full BIP39 Wordlist ](/)