--- title: "BIP39 Word #1052: lock — Seed Phrase Mnemonic Word" url: "https://bip39-phrase.com/bip39-word/lock/" language: "en" updated: "2026-10-19T00:00:00+00:00" --- Word #1052 10000011011 # lock — BIP39 word #1052 "**lock**" is word #1052 of the 2048 words in the official BIP39 English wordlist, between [local](/bip39-word/local/) and [logic](/bip39-word/logic/). In a seed phrase it stands for the 11-bit value `10000011011`, decimal index 1051\. /lɒk/ · _noun:_ a device that keeps a door or lid closed, opened with a key [Russian](/ru/ "The BIP39 wordlist with Russian translations"): замок ## Binary Representation Five 1-bits and six 0-bits; 462 of the 2048 indexes have exactly five 1-bits. One wrong bit turns it into (leftmost bit first): [address](/bip39-word/address/)[sell](/bip39-word/sell/)[pet](/bip39-word/pet/)[nature](/bip39-word/nature/)[merge](/bip39-word/merge/)[manual](/bip39-word/manual/)[lift](/bip39-word/lift/)[list](/bip39-word/list/)[loop](/bip39-word/loop/)[lobster](/bip39-word/lobster/)[local](/bip39-word/local/) Position Hex Index 0x41B 4-Letter Prefix lock ## About "lock" in BIP39 - It takes all four letters to identify "lock": **"loc"** also begins [local](/bip39-word/local/). - "lock" appears in one of the 24 official English [test vectors](https://github.com/trezor/python-mnemonic/blob/master/vectors.json) of BIP39: vector #23 (word 3 of 18). Every official vector passes the [checksum checker](/bip39-checksum-checker/), and [How BIP39 works](/how-bip39-works/) shows how the entropy turns into such words. Official test vector #23 [scissors](/bip39-word/scissors/) [invite](/bip39-word/invite/) lock [maple](/bip39-word/maple/) [supreme](/bip39-word/supreme/) [raw](/bip39-word/raw/) [rapid](/bip39-word/rapid/) [void](/bip39-word/void/) [congress](/bip39-word/congress/) [muscle](/bip39-word/muscle/) [digital](/bip39-word/digital/) [elegant](/bip39-word/elegant/) [little](/bip39-word/little/) [brisk](/bip39-word/brisk/) [hair](/bip39-word/hair/) [mango](/bip39-word/mango/) [congress](/bip39-word/congress/) [clump](/bip39-word/clump/) ## Word #1052 in the Other 9 BIP39 Wordlists [Czech](/czech/) odjinud [French](/french/) instinct [Italian](/italian/) mordere [Japanese](/japanese/) そんみん [Korean](/korean/) 아프리카 [Portuguese](/portuguese/) injetar [Spanish](/spanish/) logro [Traditional Chinese](/chinese-traditional/) 床 [Simplified Chinese](/chinese-simplified/) 床 ## Similar Words — Check Carefully During Recovery 3 BIP39 words differ from "lock" by just a single letter — the most common source of typos when a seed phrase is entered by hand: [clock](/bip39-word/clock/)[flock](/bip39-word/flock/)[sock](/bip39-word/sock/) Read aloud, "lock" /lɒk/ is one sound away from these 5 words: [knock /nɒk/](/bip39-word/knock/)[lake /leɪk/](/bip39-word/lake/)[like /laɪk/](/bip39-word/like/)[long /lɒŋ/](/bip39-word/long/)[shock /ʃɒk/](/bip39-word/shock/) Words sharing the first three letters "loc": [local](/bip39-word/local/) ## More BIP39 Words Starting with "L" [ #1048 load ](/bip39-word/load/)[ #1049 loan ](/bip39-word/loan/)[ #1050 lobster ](/bip39-word/lobster/)[ #1051 local ](/bip39-word/local/)[ #1053 logic ](/bip39-word/logic/)[ #1054 lonely ](/bip39-word/lonely/)[ #1055 long ](/bip39-word/long/)[ #1056 loop ](/bip39-word/loop/) [View all words starting with "L" ](/bip39-words/l/) ## 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 ](/)