--- title: "BIP39 Word #387: core — Seed Phrase Mnemonic Word" url: "https://bip39-phrase.com/bip39-word/core/" language: "en" updated: "2026-10-19T00:00:00+00:00" --- Word #387 00110000010 # core — BIP39 word #387 "**core**" is word #387 of the 2048 words in the official BIP39 English wordlist, between [coral](/bip39-word/coral/) and [corn](/bip39-word/corn/). In a seed phrase it stands for the 11-bit value `00110000010`, decimal index 386\. /kɔː/ · _noun:_ the central or most important part of something [Russian](/ru/ "The BIP39 wordlist with Russian translations"): ядро ## Binary Representation Three 1-bits and eight 0-bits; 165 of the 2048 indexes have exactly three 1-bits. One wrong bit turns it into (leftmost bit first): [raccoon](/bip39-word/raccoon/)[icon](/bip39-word/icon/)[aware](/bip39-word/aware/)[cake](/bip39-word/cake/)[debate](/bip39-word/debate/)[crowd](/bip39-word/crowd/)[crane](/bip39-word/crane/)[course](/bip39-word/course/)[cotton](/bip39-word/cotton/)[copy](/bip39-word/copy/)[corn](/bip39-word/corn/) Position Hex Index 0x182 4-Letter Prefix core ## About "core" in BIP39 - It takes all four letters to identify "core": **"cor"** also begins [coral](/bip39-word/coral/), [corn](/bip39-word/corn/) and [correct](/bip39-word/correct/). ## Word #387 in the Other 9 BIP39 Wordlists [Czech](/czech/) hala [French](/french/) chocolat [Italian](/italian/) congelare [Japanese](/japanese/) きかい [Korean](/korean/) 대부분 [Portuguese](/portuguese/) capela [Spanish](/spanish/) chico [Traditional Chinese](/chinese-traditional/) 音 [Simplified Chinese](/chinese-simplified/) 音 ## Similar Words — Check Carefully During Recovery 4 BIP39 words differ from "core" by just a single letter — the most common source of typos when a seed phrase is entered by hand: [code](/bip39-word/code/)[come](/bip39-word/come/)[corn](/bip39-word/corn/)[more](/bip39-word/more/) Read aloud, "core" /kɔː/ is one sound away from these 10 words: [call /kɔːl/](/bip39-word/call/)[car /kɑː/](/bip39-word/car/)[caught /kɔːt/](/bip39-word/caught/)[cause /kɔːz/](/bip39-word/cause/)[claw /klɔː/](/bip39-word/claw/)[course /kɔːs/](/bip39-word/course/)[door /dɔː/](/bip39-word/door/)[key /kiː/](/bip39-word/key/)[law /lɔː/](/bip39-word/law/)[raw /rɔː/](/bip39-word/raw/) Words sharing the first three letters "cor": [coral](/bip39-word/coral/)[corn](/bip39-word/corn/)[correct](/bip39-word/correct/) ## More BIP39 Words Starting with "C" [ #383 cool ](/bip39-word/cool/)[ #384 copper ](/bip39-word/copper/)[ #385 copy ](/bip39-word/copy/)[ #386 coral ](/bip39-word/coral/)[ #388 corn ](/bip39-word/corn/)[ #389 correct ](/bip39-word/correct/)[ #390 cost ](/bip39-word/cost/)[ #391 cotton ](/bip39-word/cotton/) [View all words starting with "C" ](/bip39-words/c/) ## Seed phrase, key and recovery guides - [TON Seed Phrase: 24-Word Format vs 12-Word BIP39 Phrases](/seed-phrase-format-for-ton-wallets/) - [Recover Lost Bitcoin: Find Wallet Backups and Seed Phrases](/recover-lost-bitcoin-find-wallet-backups/) - [Seed Phrase vs Private Key: What's the Difference?](/seed-phrase-vs-private-key/) [ Full BIP39 Wordlist ](/)