---
title: "BIP39 Word #536: drill — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/drill/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #536 01000010111 

# drill — BIP39 word #536

"**drill**" is word #536 of the 2048 words in the official BIP39 English wordlist, between [drift](/bip39-word/drift/) and [drink](/bip39-word/drink/). In a seed phrase it stands for the 11-bit value `01000010111`, decimal index 535\. 

/drɪl/  · _noun:_ a tool or machine for making holes, or repeated practice 

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

## Binary Representation

Five 1-bits and six 0-bits; 462 of the 2048 indexes have exactly five 1-bits.

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

[seed](/bip39-word/seed/)[actual](/bip39-word/actual/)[glass](/bip39-word/glass/)[fancy](/bip39-word/fancy/)[enough](/bip39-word/enough/)[eight](/bip39-word/eight/)[domain](/bip39-word/domain/)[dumb](/bip39-word/dumb/)[draw](/bip39-word/draw/)[dress](/bip39-word/dress/)[drift](/bip39-word/drift/) 

Position

Hex Index

0x217

4-Letter Prefix

dril

## About "drill" in BIP39

- "drill" has 5 letters, but the first four, **"dril"**, already identify it, because **"dri"** also begins [drift](/bip39-word/drift/), [drink](/bip39-word/drink/), [drip](/bip39-word/drip/) and [drive](/bip39-word/drive/).
- "drill" appears in one of the 24 official English [test vectors](https://github.com/trezor/python-mnemonic/blob/master/vectors.json) of BIP39: vector #13 (word 2 of 12). Every official vector passes the [checksum checker](/bip39-checksum-checker/), and [How BIP39 works](/how-bip39-works/) shows how the entropy turns into such words.

Official test vector #13

[ozone](/bip39-word/ozone/) drill [grab](/bip39-word/grab/) [fiber](/bip39-word/fiber/) [curtain](/bip39-word/curtain/) [grace](/bip39-word/grace/) [pudding](/bip39-word/pudding/) [thank](/bip39-word/thank/) [cruise](/bip39-word/cruise/) [elder](/bip39-word/elder/) [eight](/bip39-word/eight/) [picnic](/bip39-word/picnic/) 

## Word #536 in the Other 9 BIP39 Wordlists

[Czech](/czech/) jogurt 

[French](/french/) dépenser 

[Italian](/italian/) educare 

[Japanese](/japanese/) げざん 

[Korean](/korean/) 물질 

[Portuguese](/portuguese/) crosta 

[Spanish](/spanish/) diadema 

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

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

## Similar Words — Check Carefully During Recovery

Read aloud, "drill" /drɪl/ is one sound away from this word: 

[drip /drɪp/](/bip39-word/drip/) 

Words sharing the first three letters "dri":

[drift](/bip39-word/drift/)[drink](/bip39-word/drink/)[drip](/bip39-word/drip/)[drive](/bip39-word/drive/) 

## More BIP39 Words Starting with "D"

[ #532 draw ](/bip39-word/draw/)[ #533 dream ](/bip39-word/dream/)[ #534 dress ](/bip39-word/dress/)[ #535 drift ](/bip39-word/drift/)[ #537 drink ](/bip39-word/drink/)[ #538 drip ](/bip39-word/drip/)[ #539 drive ](/bip39-word/drive/)[ #540 drop ](/bip39-word/drop/) 

[View all words starting with "D" ](/bip39-words/d/) 

## Seed phrase, key and recovery guides

- [Can You Guess a Seed Phrase? Probability and Real Risks](/can-you-guess-a-seed-phrase-probability-and-real-risks/)
- [Crypto Inheritance: How to Pass On Your Seed Phrase](/crypto-inheritance/)
- [Private Key Export: MetaMask, Trust Wallet, Ledger, Electrum](/convert-seed-phrase-to-private-key-guide/)

[ Full BIP39 Wordlist ](/)