--- title: "BIP39 Word #1070: mad — Seed Phrase Mnemonic Word" url: "https://bip39-phrase.com/bip39-word/mad/" language: "en" updated: "2026-10-19T00:00:00+00:00" --- Word #1070 10000101101 # mad — BIP39 word #1070 "**mad**" is word #1070 of the 2048 words in the official BIP39 English wordlist, between [machine](/bip39-word/machine/) and [magic](/bip39-word/magic/). In a seed phrase it stands for the 11-bit value `10000101101`, decimal index 1069\. /mæd/ · _adjective:_ very angry, or mentally ill or foolish [Russian](/ru/ "The BIP39 wordlist with Russian translations"): безумный ## 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): [aisle](/bip39-word/aisle/)[shield](/bip39-word/shield/)[pizza](/bip39-word/pizza/)[noble](/bip39-word/noble/)[misery](/bip39-word/misery/)[like](/bip39-word/like/)[marble](/bip39-word/marble/)[lucky](/bip39-word/lucky/)[lunch](/bip39-word/lunch/)[magnet](/bip39-word/magnet/)[machine](/bip39-word/machine/) Position Hex Index 0x42D 4-Letter Prefix mad ## About "mad" in BIP39 - It takes all three letters to identify "mad": **"ma"** also begins 32 other words, among them [machine](/bip39-word/machine/), [magic](/bip39-word/magic/), [magnet](/bip39-word/magnet/) and [maid](/bip39-word/maid/). Three letters are enough for only 604 of the 2048 words. ## Word #1070 in the Other 9 BIP39 Wordlists [Czech](/czech/) odtud [French](/french/) ivresse [Italian](/italian/) munto [Japanese](/japanese/) たいてい [Korean](/korean/) 암시 [Portuguese](/portuguese/) inverno [Spanish](/spanish/) madre [Traditional Chinese](/chinese-traditional/) 退 [Simplified Chinese](/chinese-simplified/) 退 ## Similar Words — Check Carefully During Recovery 4 BIP39 words differ from "mad" by just a single letter — the most common source of typos when a seed phrase is entered by hand: [dad](/bip39-word/dad/)[maid](/bip39-word/maid/)[man](/bip39-word/man/)[sad](/bip39-word/sad/) Read aloud, "mad" /mæd/ is one sound away from these 4 words: [add /æd/](/bip39-word/add/)[mass /mæs/](/bip39-word/mass/)[match /mæʧ/](/bip39-word/match/)[math /mæθ/](/bip39-word/math/) ## More BIP39 Words Starting with "M" [ #1069 machine ](/bip39-word/machine/)[ #1071 magic ](/bip39-word/magic/)[ #1072 magnet ](/bip39-word/magnet/)[ #1073 maid ](/bip39-word/maid/)[ #1074 mail ](/bip39-word/mail/)[ #1171 myself ](/bip39-word/myself/)[ #1172 mystery ](/bip39-word/mystery/)[ #1173 myth ](/bip39-word/myth/) [View all words starting with "M" ](/bip39-words/m/) ## Seed phrase, key and recovery guides - [BIP 44 – Multi-Account Hierarchy for Deterministic Wallets](/bip-44-multi-account-hierarchy-for-deterministic-wallets/) - [Electrum Seed vs BIP39: Why Other Wallets Reject It](/electrum-seed-vs-bip39/) - [Cold Sharding: Splitting a Private Key Into Offline Shamir Shares](/cold-sharding-method-private-key-storage-strategy/) [ Full BIP39 Wordlist ](/)