---
title: "BIP39 Word #515: doctor — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/doctor/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #515 01000000010 

# doctor — BIP39 word #515

"**doctor**" is word #515 of the 2048 words in the official BIP39 English wordlist, between [dizzy](/bip39-word/dizzy/) and [document](/bip39-word/document/). In a seed phrase it stands for the 11-bit value `01000000010`, decimal index 514\. 

/ˈdɒktə/  · _noun:_ a person trained and licensed to treat sick or injured people 

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

## Binary Representation

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

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

[scare](/bip39-word/scare/)[able](/bip39-word/able/)[gate](/bip39-word/gate/)[expect](/bip39-word/expect/)[embark](/bip39-word/embark/)[dust](/bip39-word/dust/)[drastic](/bip39-word/drastic/)[donor](/bip39-word/donor/)[dolphin](/bip39-word/dolphin/)[divorce](/bip39-word/divorce/)[document](/bip39-word/document/) 

Position

Hex Index

0x202

4-Letter Prefix

doct

## About "doctor" in BIP39

- "doctor" has 6 letters, but the first four, **"doct"**, already identify it, because **"doc"** also begins [document](/bip39-word/document/).
- **"doct"** is unique only within the English list: it also begins docteur in the [French list](/french/), so a four-letter backup should say which list it uses.
- "doctor" appears in three of the 24 official English [test vectors](https://github.com/trezor/python-mnemonic/blob/master/vectors.json) of BIP39: vectors #3 (word 6 of 12), #7 (words 6 and 14 of 18) and #11 (words 6, 14 and 22 of 24). 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 #3

[letter](/bip39-word/letter/) [advice](/bip39-word/advice/) [cage](/bip39-word/cage/) [absurd](/bip39-word/absurd/) [amount](/bip39-word/amount/) doctor [acoustic](/bip39-word/acoustic/) [avoid](/bip39-word/avoid/) [letter](/bip39-word/letter/) [advice](/bip39-word/advice/) [cage](/bip39-word/cage/) [above](/bip39-word/above/) 

## Word #515 in the Other 9 BIP39 Wordlists

[Czech](/czech/) jedle 

[French](/french/) dédale 

[Italian](/italian/) dottore 

[Japanese](/japanese/) けいけん 

[Korean](/korean/) 무슨 

[Portuguese](/portuguese/) coruja 

[Spanish](/spanish/) dejar 

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

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

## Similar Words — Check Carefully During Recovery

Words sharing the first three letters "doc":

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

## More BIP39 Words Starting with "D"

[ #511 divert ](/bip39-word/divert/)[ #512 divide ](/bip39-word/divide/)[ #513 divorce ](/bip39-word/divorce/)[ #514 dizzy ](/bip39-word/dizzy/)[ #516 document ](/bip39-word/document/)[ #517 dog ](/bip39-word/dog/)[ #518 doll ](/bip39-word/doll/)[ #519 dolphin ](/bip39-word/dolphin/) 

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

## Seed phrase, key and recovery guides

- [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/)
- [Derivation Path Explained: What m/44'/0'/0'/0/0 Means](/derivation-path/)

[ Full BIP39 Wordlist ](/)