---
title: "BIP39 Word #647: express — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/express/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #647 01010000110 

# express — BIP39 word #647

"**express**" is word #647 of the 2048 words in the official BIP39 English wordlist, between [expose](/bip39-word/expose/) and [extend](/bip39-word/extend/). In a seed phrase it stands for the 11-bit value `01010000110`, decimal index 646\. 

/ɪksˈprɛs/  · _verb:_ to show a thought or feeling in words, looks or actions 

[Russian](/ru/ "The BIP39 wordlist with Russian translations"): выражать 

## Binary Representation

Four 1-bits and seven 0-bits; 330 of the 2048 indexes have exactly four 1-bits.

One wrong bit turns it into (leftmost bit first):

[speak](/bip39-word/speak/)[awkward](/bip39-word/awkward/)[ignore](/bip39-word/ignore/)[dolphin](/bip39-word/dolphin/)[flee](/bip39-word/flee/)[feel](/bip39-word/feel/)[fan](/bip39-word/fan/)[fade](/bip39-word/fade/)[expect](/bip39-word/expect/)[explain](/bip39-word/explain/)[extend](/bip39-word/extend/) 

Position

Hex Index

0x286

4-Letter Prefix

expr

## About "express" in BIP39

- "express" has 7 letters, but the first four, **"expr"**, already identify it, because **"exp"** also begins [expand](/bip39-word/expand/), [expect](/bip39-word/expect/), [expire](/bip39-word/expire/), [explain](/bip39-word/explain/) and [expose](/bip39-word/expose/).
- **"expr"** is unique only within the English list: it also begins exprimer in the [French list](/french/) and expresso in the [Portuguese list](/portuguese/), so a four-letter backup should say which list it uses.

## Word #647 in the Other 9 BIP39 Wordlists

[Czech](/czech/) korektor 

[French](/french/) élucider 

[Italian](/italian/) fertile 

[Japanese](/japanese/) こたえる 

[Korean](/korean/) 병실 

[Portuguese](/portuguese/) dosagem 

[Spanish](/spanish/) este 

[Traditional Chinese](/chinese-traditional/) 策 

[Simplified Chinese](/chinese-simplified/) 策 

## Similar Words — Check Carefully During Recovery

Words sharing the first three letters "exp":

[expand](/bip39-word/expand/)[expect](/bip39-word/expect/)[expire](/bip39-word/expire/)[explain](/bip39-word/explain/)[expose](/bip39-word/expose/) 

## More BIP39 Words Starting with "E"

[ #643 expect ](/bip39-word/expect/)[ #644 expire ](/bip39-word/expire/)[ #645 explain ](/bip39-word/explain/)[ #646 expose ](/bip39-word/expose/)[ #648 extend ](/bip39-word/extend/)[ #649 extra ](/bip39-word/extra/)[ #650 eye ](/bip39-word/eye/)[ #651 eyebrow ](/bip39-word/eyebrow/) 

[View all words starting with "E" ](/bip39-words/e/) 

## 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 ](/)