--- title: "BIP39 Word #1663: sound — Seed Phrase Mnemonic Word" url: "https://bip39-phrase.com/bip39-word/sound/" language: "en" updated: "2026-10-19T00:00:00+00:00" --- Word #1663 11001111110 # sound — BIP39 word #1663 "**sound**" is word #1663 of the 2048 words in the official BIP39 English wordlist, between [soul](/bip39-word/soul/) and [soup](/bip39-word/soup/). In a seed phrase it stands for the 11-bit value `11001111110`, decimal index 1662\. /saʊnd/ · _noun:_ something that can be heard [Russian](/ru/ "The BIP39 wordlist with Russian translations"): звук ## Binary Representation Eight 1-bits and three 0-bits; 165 of the 2048 indexes have exactly eight 1-bits. One wrong bit turns it into (leftmost bit first): [exist](/bip39-word/exist/)[more](/bip39-word/more/)[used](/bip39-word/used/)[thank](/bip39-word/thank/)[sick](/bip39-word/sick/)[slim](/bip39-word/slim/)[soccer](/bip39-word/soccer/)[solution](/bip39-word/solution/)[soon](/bip39-word/soon/)[sort](/bip39-word/sort/)[soup](/bip39-word/soup/) Position Hex Index 0x67E 4-Letter Prefix soun ## About "sound" in BIP39 - "sound" has 5 letters, but the first four, **"soun"**, already identify it, because **"sou"** also begins [soul](/bip39-word/soul/), [soup](/bip39-word/soup/), [source](/bip39-word/source/) and [south](/bip39-word/south/). ## Word #1663 in the Other 9 BIP39 Wordlists [Czech](/czech/) tajnost [French](/french/) rideau [Italian](/italian/) silenzio [Japanese](/japanese/) ひるま [Korean](/korean/) 찬성 [Portuguese](/portuguese/) repudiar [Spanish](/spanish/) saber [Traditional Chinese](/chinese-traditional/) 牢 [Simplified Chinese](/chinese-simplified/) 牢 ## Similar Words — Check Carefully During Recovery 2 BIP39 words differ from "sound" by just a single letter — the most common source of typos when a seed phrase is entered by hand: [found](/bip39-word/found/)[round](/bip39-word/round/) Read aloud, "sound" /saʊnd/ is one sound away from this word: [sand /sænd/](/bip39-word/sand/) Words sharing the first three letters "sou": [soul](/bip39-word/soul/)[soup](/bip39-word/soup/)[source](/bip39-word/source/)[south](/bip39-word/south/) ## More BIP39 Words Starting with "S" [ #1659 soon ](/bip39-word/soon/)[ #1660 sorry ](/bip39-word/sorry/)[ #1661 sort ](/bip39-word/sort/)[ #1662 soul ](/bip39-word/soul/)[ #1664 soup ](/bip39-word/soup/)[ #1665 source ](/bip39-word/source/)[ #1666 south ](/bip39-word/south/)[ #1667 space ](/bip39-word/space/) [View all words starting with "S" ](/bip39-words/s/) ## Seed phrase, key and recovery guides - [BIP39 Passphrase: How the 25th Word Creates a Hidden Wallet](/bip39-passphrase/) - [Is My Seed Phrase Compromised? Signs and What to Do Next](/bip39-seed-phrase-compromise/) - [BIP 32 Explained: Hierarchical Deterministic Wallets](/bip-32/) [ Full BIP39 Wordlist ](/)