---
title: "BIP39 Word #1099: matter — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/matter/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #1099 10001001010 

# matter — BIP39 word #1099

"**matter**" is word #1099 of the 2048 words in the official BIP39 English wordlist, between [matrix](/bip39-word/matrix/) and [maximum](/bip39-word/maximum/). In a seed phrase it stands for the 11-bit value `10001001010`, decimal index 1098\. 

/ˈmætə/  · _noun:_ physical substance, or a subject or situation being considered 

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

## 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):

[announce](/bip39-word/announce/)[sing](/bip39-word/sing/)[power](/bip39-word/power/)[off](/bip39-word/off/)[life](/bip39-word/life/)[minute](/bip39-word/minute/)[mercy](/bip39-word/mercy/)[marriage](/bip39-word/marriage/)[mean](/bip39-word/mean/)[math](/bip39-word/math/)[maximum](/bip39-word/maximum/) 

Position

Hex Index

0x44A

4-Letter Prefix

matt

## About "matter" in BIP39

- "matter" has 6 letters, but the first four, **"matt"**, already identify it, because **"mat"** also begins [match](/bip39-word/match/), [material](/bip39-word/material/), [math](/bip39-word/math/) and [matrix](/bip39-word/matrix/).
- **"matt"** is unique only within the English list: it also begins mattone in the [Italian list](/italian/), so a four-letter backup should say which list it uses.

## Word #1099 in the Other 9 BIP39 Wordlists

[Czech](/czech/) omeleta 

[French](/french/) juvénile 

[Italian](/italian/) neutrale 

[Japanese](/japanese/) たこく 

[Korean](/korean/) 어쨌든 

[Portuguese](/portuguese/) jorrar 

[Spanish](/spanish/) marfil 

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

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

## Similar Words — Check Carefully During Recovery

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

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

Read aloud, "matter" /ˈmætə/ is one sound away from this word: 

[motor /ˈməʊtə/](/bip39-word/motor/) 

Words sharing the first three letters "mat":

[match](/bip39-word/match/)[material](/bip39-word/material/)[math](/bip39-word/math/)[matrix](/bip39-word/matrix/) 

## More BIP39 Words Starting with "M"

[ #1095 match ](/bip39-word/match/)[ #1096 material ](/bip39-word/material/)[ #1097 math ](/bip39-word/math/)[ #1098 matrix ](/bip39-word/matrix/)[ #1100 maximum ](/bip39-word/maximum/)[ #1101 maze ](/bip39-word/maze/)[ #1102 meadow ](/bip39-word/meadow/)[ #1103 mean ](/bip39-word/mean/) 

[View all words starting with "M" ](/bip39-words/m/) 

## Seed phrase, key and recovery guides

- [BIP39 Passphrase: How the 25th Word Creates a Hidden Wallet](/bip39-passphrase/)
- [Is My Seed Phrase Compromised? Signs and What to Do Next](/bip39-seed-phrase-compromise/)
- [BIP 32 Explained: Hierarchical Deterministic Wallets](/bip-32/)

[ Full BIP39 Wordlist ](/)