---
title: "BIP39 Word #1728: subject — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/subject/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #1728 11010111111 

# subject — BIP39 word #1728

"**subject**" is word #1728 of the 2048 words in the official BIP39 English wordlist, between [style](/bip39-word/style/) and [submit](/bip39-word/submit/). In a seed phrase it stands for the 11-bit value `11010111111`, decimal index 1727\. 

/ˈsʌbʤɪkt/  · _noun:_ the thing being discussed, or an area of study at school 

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

## Binary Representation

Nine 1-bits and two 0-bits; 55 of the 2048 indexes have exactly nine 1-bits.

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

[fitness](/bip39-word/fitness/)[obey](/bip39-word/obey/)[wave](/bip39-word/wave/)[side](/bip39-word/side/)[that](/bip39-word/that/)[stadium](/bip39-word/stadium/)[sting](/bip39-word/sting/)[street](/bip39-word/street/)[student](/bip39-word/student/)[stumble](/bip39-word/stumble/)[style](/bip39-word/style/) 

Position

Hex Index

0x6BF

4-Letter Prefix

subj

## About "subject" in BIP39

- "subject" has 7 letters, but the first four, **"subj"**, already identify it, because **"sub"** also begins [submit](/bip39-word/submit/) and [subway](/bip39-word/subway/).
- **"subj"** is unique only within the English list: it also begins subjekt in the [Czech list](/czech/), so a four-letter backup should say which list it uses.

## Word #1728 in the Other 9 BIP39 Wordlists

[Czech](/czech/) tundra 

[French](/french/) science 

[Italian](/italian/) spazzola 

[Japanese](/japanese/) ぶんぽう 

[Korean](/korean/) 최악 

[Portuguese](/portuguese/) salgado 

[Spanish](/spanish/) signo 

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

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

## Similar Words — Check Carefully During Recovery

Words sharing the first three letters "sub":

[submit](/bip39-word/submit/)[subway](/bip39-word/subway/) 

## More BIP39 Words Starting with "S"

[ #1724 student ](/bip39-word/student/)[ #1725 stuff ](/bip39-word/stuff/)[ #1726 stumble ](/bip39-word/stumble/)[ #1727 style ](/bip39-word/style/)[ #1729 submit ](/bip39-word/submit/)[ #1730 subway ](/bip39-word/subway/)[ #1731 success ](/bip39-word/success/)[ #1732 such ](/bip39-word/such/) 

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

## 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 ](/)