---
title: "BIP39 Word #1392: pupil — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/pupil/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #1392 10101101111 

# pupil — BIP39 word #1392

"**pupil**" is word #1392 of the 2048 words in the official BIP39 English wordlist, between [punch](/bip39-word/punch/) and [puppy](/bip39-word/puppy/). In a seed phrase it stands for the 11-bit value `10101101111`, decimal index 1391\. 

/ˈpjuːpᵊl/  · _noun:_ a student at a school, or the dark center of the eye 

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

## Binary Representation

Eight 1-bits and three 0-bits; 165 of the 2048 indexes have exactly eight 1-bits.

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

[combine](/bip39-word/combine/)[unknown](/bip39-word/unknown/)[mistake](/bip39-word/mistake/)[sadness](/bip39-word/sadness/)[planet](/bip39-word/planet/)[prepare](/bip39-word/prepare/)[quiz](/bip39-word/quiz/)[provide](/bip39-word/provide/)[pulp](/bip39-word/pulp/)[pumpkin](/bip39-word/pumpkin/)[punch](/bip39-word/punch/) 

Position

Hex Index

0x56F

4-Letter Prefix

pupi

## About "pupil" in BIP39

- "pupil" has 5 letters, but the first four, **"pupi"**, already identify it, because **"pup"** also begins [puppy](/bip39-word/puppy/).
- **"pupi"** is unique only within the English list: it also begins pupitre in the [French list](/french/), pupila in the [Spanish list](/spanish/), pupilla in the [Italian list](/italian/) and pupilo in the [Portuguese list](/portuguese/), so a four-letter backup should say which list it uses.

## Word #1392 in the Other 9 BIP39 Wordlists

[Czech](/czech/) raketa 

[French](/french/) organe 

[Italian](/italian/) ragno 

[Japanese](/japanese/) なまいき 

[Korean](/korean/) 임무 

[Portuguese](/portuguese/) omisso 

[Spanish](/spanish/) pecera 

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

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

## Similar Words — Check Carefully During Recovery

Words sharing the first three letters "pup":

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

## More BIP39 Words Starting with "P"

[ #1388 pulp ](/bip39-word/pulp/)[ #1389 pulse ](/bip39-word/pulse/)[ #1390 pumpkin ](/bip39-word/pumpkin/)[ #1391 punch ](/bip39-word/punch/)[ #1393 puppy ](/bip39-word/puppy/)[ #1394 purchase ](/bip39-word/purchase/)[ #1395 purity ](/bip39-word/purity/)[ #1396 purpose ](/bip39-word/purpose/) 

[View all words starting with "P" ](/bip39-words/p/) 

## Seed phrase, key and recovery guides

- [What Is a Seed Phrase? How a Recovery Phrase Works](/recovery-seed-phrase-guide/)
- [What Is a Bitcoin Address and How Does It Work?](/what-is-a-bitcoin-address/)
- [How to Generate a BIP39 Seed Phrase with Dice, Step by Step](/seed-phrase-with-dice/)

[ Full BIP39 Wordlist ](/)