---
title: "BIP39 Word #1666: south — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/south/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #1666 11010000001 

# south — BIP39 word #1666

"**south**" is word #1666 of the 2048 words in the official BIP39 English wordlist, between [source](/bip39-word/source/) and [space](/bip39-word/space/). In a seed phrase it stands for the 11-bit value `11010000001`, decimal index 1665\. 

/saʊθ/  · _noun:_ the direction to your right when facing the rising sun 

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

## 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):

[expand](/bip39-word/expand/)[mother](/bip39-word/mother/)[usual](/bip39-word/usual/)[scan](/bip39-word/scan/)[subway](/bip39-word/subway/)[stage](/bip39-word/stage/)[split](/bip39-word/split/)[spell](/bip39-word/spell/)[spawn](/bip39-word/spawn/)[spare](/bip39-word/spare/)[source](/bip39-word/source/) 

Position

Hex Index

0x681

4-Letter Prefix

sout

## About "south" in BIP39

- "south" has 5 letters, but the first four, **"sout"**, already identify it, because **"sou"** also begins [soul](/bip39-word/soul/), [sound](/bip39-word/sound/), [soup](/bip39-word/soup/) and [source](/bip39-word/source/).
- **"sout"** is unique only within the English list: it also begins soutirer in the [French list](/french/) and soutok in the [Czech list](/czech/), so a four-letter backup should say which list it uses.

## Word #1666 in the Other 9 BIP39 Wordlists

[Czech](/czech/) tampon 

[French](/french/) rigoler 

[Italian](/italian/) simpatico 

[Japanese](/japanese/) ひろい 

[Korean](/korean/) 참새 

[Portuguese](/portuguese/) resfriar 

[Spanish](/spanish/) sacar 

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

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

## Similar Words — Check Carefully During Recovery

 One BIP39 word differs from "south" by just a single letter — the most common source of typos when a seed phrase is entered by hand: 

[youth](/bip39-word/youth/) 

Words sharing the first three letters "sou":

[soul](/bip39-word/soul/)[sound](/bip39-word/sound/)[soup](/bip39-word/soup/)[source](/bip39-word/source/) 

## More BIP39 Words Starting with "S"

[ #1662 soul ](/bip39-word/soul/)[ #1663 sound ](/bip39-word/sound/)[ #1664 soup ](/bip39-word/soup/)[ #1665 source ](/bip39-word/source/)[ #1667 space ](/bip39-word/space/)[ #1668 spare ](/bip39-word/spare/)[ #1669 spatial ](/bip39-word/spatial/)[ #1670 spawn ](/bip39-word/spawn/) 

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

## Seed phrase, key and recovery guides

- [Cold Sharding: Splitting a Private Key Into Offline Shamir Shares](/cold-sharding-method-private-key-storage-strategy/)
- [Test Your Wallet Backup: A Self-Audit of Your Seed Phrase](/hack-own-crypto-wallet/)
- [EVM Address Format Explained: Structure & Usage](/format-evm-addresses/)

[ Full BIP39 Wordlist ](/)