---
title: "BIP39 Word #1746: surface — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/surface/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #1746 11011010001 

# surface — BIP39 word #1746

"**surface**" is word #1746 of the 2048 words in the official BIP39 English wordlist, between [sure](/bip39-word/sure/) and [surge](/bip39-word/surge/). In a seed phrase it stands for the 11-bit value `11011010001`, decimal index 1745\. 

/ˈsɜːfɪs/  · _noun:_ the outside or top layer of something 

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

## Binary Representation

Six 1-bits and five 0-bits; 462 of the 2048 indexes have exactly six 1-bits.

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

[focus](/bip39-word/focus/)[olive](/bip39-word/olive/)[when](/bip39-word/when/)[sketch](/bip39-word/sketch/)[split](/bip39-word/split/)[taste](/bip39-word/taste/)[subway](/bip39-word/subway/)[swamp](/bip39-word/swamp/)[survey](/bip39-word/survey/)[surprise](/bip39-word/surprise/)[sure](/bip39-word/sure/) 

Position

Hex Index

0x6D1

4-Letter Prefix

surf

## About "surface" in BIP39

- "surface" has 7 letters, but the first four, **"surf"**, already identify it, because **"sur"** also begins [sure](/bip39-word/sure/), [surge](/bip39-word/surge/), [surprise](/bip39-word/surprise/), [surround](/bip39-word/surround/) and [survey](/bip39-word/survey/).
- The same spelling is in the [French BIP39 wordlist](/french/), but as word #1831 (index 1830), not #1746\. A wallet set to French reads "surface" as **11100100110** instead of **11011010001**, and decodes index 1745 as "séminal".
- **"surf"** is unique only within the English list: it also begins surfista in the [Portuguese list](/portuguese/), so a four-letter backup should say which list it uses.

## Word #1746 in the Other 9 BIP39 Wordlists

[Czech](/czech/) udivit 

[French](/french/) séminal 

[Italian](/italian/) sprecare 

[Japanese](/japanese/) べにしょうが 

[Korean](/korean/) 출판 

[Portuguese](/portuguese/) saxofone 

[Spanish](/spanish/) sólido 

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

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

## Similar Words — Check Carefully During Recovery

Read aloud, "surface" /ˈsɜːfɪs/ is one sound away from this word: 

[service /ˈsɜːvɪs/](/bip39-word/service/) 

Words sharing the first three letters "sur":

[sure](/bip39-word/sure/)[surge](/bip39-word/surge/)[surprise](/bip39-word/surprise/)[surround](/bip39-word/surround/)[survey](/bip39-word/survey/) 

## More BIP39 Words Starting with "S"

[ #1742 super ](/bip39-word/super/)[ #1743 supply ](/bip39-word/supply/)[ #1744 supreme ](/bip39-word/supreme/)[ #1745 sure ](/bip39-word/sure/)[ #1747 surge ](/bip39-word/surge/)[ #1748 surprise ](/bip39-word/surprise/)[ #1749 surround ](/bip39-word/surround/)[ #1750 survey ](/bip39-word/survey/) 

[View all words starting with "S" ](/bip39-words/s/) 

## Seed phrase, key and recovery guides

- [Metal Seed Phrase Backup: Steel Plates, Tiles and Tests](/metal-seed-phrase-backup/)
- [Invalid Seed Phrase? How to Find and Fix a Wrong Word (BIP39)](/how-to-fix-seed-phrase-errors/)
- [Ethereum Keystore File (JSON Wallet): Structure and Security](/json-wallets-explained/)

[ Full BIP39 Wordlist ](/)