---
title: "BIP39 Word #1566: senior — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/senior/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #1566 11000011101 

# senior — BIP39 word #1566

"**senior**" is word #1566 of the 2048 words in the official BIP39 English wordlist, between [seminar](/bip39-word/seminar/) and [sense](/bip39-word/sense/). In a seed phrase it stands for the 11-bit value `11000011101`, decimal index 1565\. 

/ˈsiːnjə/  · _adjective:_ older, or higher in rank or position 

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

## 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):

[dry](/bip39-word/dry/)[lonely](/bip39-word/lonely/)[together](/bip39-word/together/)[squirrel](/bip39-word/squirrel/)[slight](/bip39-word/slight/)[sibling](/bip39-word/sibling/)[script](/bip39-word/script/)[section](/bip39-word/section/)[segment](/bip39-word/segment/)[sentence](/bip39-word/sentence/)[seminar](/bip39-word/seminar/) 

Position

Hex Index

0x61D

4-Letter Prefix

seni

## About "senior" in BIP39

- "senior" has 6 letters, but the first four, **"seni"**, already identify it, because **"sen"** also begins [sense](/bip39-word/sense/) and [sentence](/bip39-word/sentence/).

## Word #1566 in the Other 9 BIP39 Wordlists

[Czech](/czech/) smysl 

[French](/french/) pruneau 

[Italian](/italian/) scala 

[Japanese](/japanese/) はっきり 

[Korean](/korean/) 종업원 

[Portuguese](/portuguese/) profeta 

[Spanish](/spanish/) recreo 

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

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

## Similar Words — Check Carefully During Recovery

Words sharing the first three letters "sen":

[sense](/bip39-word/sense/)[sentence](/bip39-word/sentence/) 

## More BIP39 Words Starting with "S"

[ #1562 segment ](/bip39-word/segment/)[ #1563 select ](/bip39-word/select/)[ #1564 sell ](/bip39-word/sell/)[ #1565 seminar ](/bip39-word/seminar/)[ #1567 sense ](/bip39-word/sense/)[ #1568 sentence ](/bip39-word/sentence/)[ #1569 series ](/bip39-word/series/)[ #1570 service ](/bip39-word/service/) 

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

## Seed phrase, key and recovery guides

- [How to Store a Seed Phrase: Paper, Steel and Safe Locations](/store-a-seed-phrase/)
- [How to Restore a Wallet From a Seed Phrase: Step by Step](/restore-wallet-from-seed-phrase/)
- [xpub, ypub and zpub: Extended Public Keys Explained](/xpub-ypub-zpub/)

[ Full BIP39 Wordlist ](/)