--- title: "BIP39 Word #1674: spell — Seed Phrase Mnemonic Word" url: "https://bip39-phrase.com/bip39-word/spell/" language: "en" updated: "2026-10-19T00:00:00+00:00" --- Word #1674 11010001001 # spell — BIP39 word #1674 "**spell**" is word #1674 of the 2048 words in the official BIP39 English wordlist, between [speed](/bip39-word/speed/) and [spend](/bip39-word/spend/). In a seed phrase it stands for the 11-bit value `11010001001`, decimal index 1673\. /spɛl/ · _verb:_ to say or write the letters of a word in order [Russian](/ru/ "The BIP39 wordlist with Russian translations"): заклинание ## 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): [eye](/bip39-word/eye/)[muffin](/bip39-word/muffin/)[van](/bip39-word/van/)[scorpion](/bip39-word/scorpion/)[summer](/bip39-word/summer/)[steel](/bip39-word/steel/)[spring](/bip39-word/spring/)[south](/bip39-word/south/)[spider](/bip39-word/spider/)[sphere](/bip39-word/sphere/)[speed](/bip39-word/speed/) Position Hex Index 0x689 4-Letter Prefix spel ## About "spell" in BIP39 - "spell" has 5 letters, but the first four, **"spel"**, already identify it, because **"spe"** also begins [speak](/bip39-word/speak/), [special](/bip39-word/special/), [speed](/bip39-word/speed/) and [spend](/bip39-word/spend/). - **"spel"** is unique only within the English list: it also begins spelatura in the [Italian list](/italian/), so a four-letter backup should say which list it uses. - "spell" appears in one of the 24 official English [test vectors](https://github.com/trezor/python-mnemonic/blob/master/vectors.json) of BIP39: vector #17 (word 6 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 #17 [horn](/bip39-word/horn/) [tenant](/bip39-word/tenant/) [knee](/bip39-word/knee/) [talent](/bip39-word/talent/) [sponsor](/bip39-word/sponsor/) spell [gate](/bip39-word/gate/) [clip](/bip39-word/clip/) [pulse](/bip39-word/pulse/) [soap](/bip39-word/soap/) [slush](/bip39-word/slush/) [warm](/bip39-word/warm/) [silver](/bip39-word/silver/) [nephew](/bip39-word/nephew/) [swap](/bip39-word/swap/) [uncle](/bip39-word/uncle/) [crack](/bip39-word/crack/) [brave](/bip39-word/brave/) ## Word #1674 in the Other 9 BIP39 Wordlists [Czech](/czech/) tehdy [French](/french/) rocheux [Italian](/italian/) sipario [Japanese](/japanese/) ひんそう [Korean](/korean/) 창구 [Portuguese](/portuguese/) retalho [Spanish](/spanish/) salón [Traditional Chinese](/chinese-traditional/) 酵 [Simplified Chinese](/chinese-simplified/) 酵 ## Similar Words — Check Carefully During Recovery 2 BIP39 words differ from "spell" by just a single letter — the most common source of typos when a seed phrase is entered by hand: [sell](/bip39-word/sell/)[shell](/bip39-word/shell/) Words sharing the first three letters "spe": [speak](/bip39-word/speak/)[special](/bip39-word/special/)[speed](/bip39-word/speed/)[spend](/bip39-word/spend/) ## More BIP39 Words Starting with "S" [ #1670 spawn ](/bip39-word/spawn/)[ #1671 speak ](/bip39-word/speak/)[ #1672 special ](/bip39-word/special/)[ #1673 speed ](/bip39-word/speed/)[ #1675 spend ](/bip39-word/spend/)[ #1676 sphere ](/bip39-word/sphere/)[ #1677 spice ](/bip39-word/spice/)[ #1678 spider ](/bip39-word/spider/) [View all words starting with "S" ](/bip39-words/s/) ## Seed phrase, key and recovery guides - [What Is a Seed Phrase? How a Recovery Phrase Works](/recovery-seed-phrase-guide/) - [What Is a Bitcoin Address and How Does It Work?](/what-is-a-bitcoin-address/) - [How to Generate a BIP39 Seed Phrase with Dice, Step by Step](/seed-phrase-with-dice/) [ Full BIP39 Wordlist ](/)