---
title: "BIP39 Word #737: foster — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/foster/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #737 01011100000 

# foster — BIP39 word #737

"**foster**" is word #737 of the 2048 words in the official BIP39 English wordlist, between [fossil](/bip39-word/fossil/) and [found](/bip39-word/found/). In a seed phrase it stands for the 11-bit value `01011100000`, decimal index 736\. 

/ˈfɒstə/  · _verb:_ to encourage the development of something, or care for another's child 

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

## 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):

[swing](/bip39-word/swing/)[bright](/bip39-word/bright/)[lab](/bip39-word/lab/)[equal](/bip39-word/equal/)[favorite](/bip39-word/favorite/)[fix](/bip39-word/fix/)[fun](/bip39-word/fun/)[fringe](/bip39-word/fringe/)[frame](/bip39-word/frame/)[fox](/bip39-word/fox/)[found](/bip39-word/found/) 

Position

Hex Index

0x2E0

4-Letter Prefix

fost

## About "foster" in BIP39

- "foster" has 6 letters, but the first four, **"fost"**, already identify it, because **"fos"** also begins [fossil](/bip39-word/fossil/).

## Word #737 in the Other 9 BIP39 Wordlists

[Czech](/czech/) lednice 

[French](/french/) étendoir 

[Italian](/italian/) gazebo 

[Japanese](/japanese/) さつじん 

[Korean](/korean/) 비판 

[Portuguese](/portuguese/) escama 

[Spanish](/spanish/) fogón 

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

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

## Similar Words — Check Carefully During Recovery

Words sharing the first three letters "fos":

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

## More BIP39 Words Starting with "F"

[ #733 fortune ](/bip39-word/fortune/)[ #734 forum ](/bip39-word/forum/)[ #735 forward ](/bip39-word/forward/)[ #736 fossil ](/bip39-word/fossil/)[ #738 found ](/bip39-word/found/)[ #739 fox ](/bip39-word/fox/)[ #740 fragile ](/bip39-word/fragile/)[ #741 frame ](/bip39-word/frame/) 

[View all words starting with "F" ](/bip39-words/f/) 

## Seed phrase, key and recovery guides

- [Why You Should Never Create Your Own Seed Phrase](/why-you-should-never-create-your-own-seed-phrase/)
- [12 vs 24 Word Seed Phrase: Which Is More Secure?](/12-vs-24-word-seed-phrase/)
- [BIP 157 Client-Side Block Filtering: Compact Filters Explained](/bip-157-client-side-block-filtering/)

[ Full BIP39 Wordlist ](/)