---
title: "BIP39 Word #355: clump — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/clump/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #355 00101100010 

# clump — BIP39 word #355

"**clump**" is word #355 of the 2048 words in the official BIP39 English wordlist, between [club](/bip39-word/club/) and [cluster](/bip39-word/cluster/). In a seed phrase it stands for the 11-bit value `00101100010`, decimal index 354\. 

/klʌmp/  · _noun:_ a small close group of plants, or a lump of something 

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

## 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):

[proof](/bip39-word/proof/)[hobby](/bip39-word/hobby/)[arrange](/bip39-word/arrange/)[detail](/bip39-word/detail/)[cattle](/bip39-word/cattle/)[choose](/bip39-word/choose/)[comic](/bip39-word/comic/)[coil](/bip39-word/coil/)[coast](/bip39-word/coast/)[clown](/bip39-word/clown/)[cluster](/bip39-word/cluster/) 

Position

Hex Index

0x162

4-Letter Prefix

clum

## About "clump" in BIP39

- "clump" has 5 letters, but the first four, **"clum"**, already identify it, because **"clu"** also begins [club](/bip39-word/club/), [cluster](/bip39-word/cluster/) and [clutch](/bip39-word/clutch/).
- "clump" appears in one of the 24 official English [test vectors](https://github.com/trezor/python-mnemonic/blob/master/vectors.json) of BIP39: vector #23 (word 18 of 18). 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. As the last word of vector #23, its final 6 bits, **100010**, are the checksum of the 18-word phrase.

Official test vector #23

[scissors](/bip39-word/scissors/) [invite](/bip39-word/invite/) [lock](/bip39-word/lock/) [maple](/bip39-word/maple/) [supreme](/bip39-word/supreme/) [raw](/bip39-word/raw/) [rapid](/bip39-word/rapid/) [void](/bip39-word/void/) [congress](/bip39-word/congress/) [muscle](/bip39-word/muscle/) [digital](/bip39-word/digital/) [elegant](/bip39-word/elegant/) [little](/bip39-word/little/) [brisk](/bip39-word/brisk/) [hair](/bip39-word/hair/) [mango](/bip39-word/mango/) [congress](/bip39-word/congress/) clump 

## Word #355 in the Other 9 BIP39 Wordlists

[Czech](/czech/) flotila 

[French](/french/) cellule 

[Italian](/italian/) cilindro 

[Japanese](/japanese/) かぶか 

[Korean](/korean/) 단순 

[Portuguese](/portuguese/) cacique 

[Spanish](/spanish/) casero 

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

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

## Similar Words — Check Carefully During Recovery

Words sharing the first three letters "clu":

[club](/bip39-word/club/)[cluster](/bip39-word/cluster/)[clutch](/bip39-word/clutch/) 

## More BIP39 Words Starting with "C"

[ #351 cloth ](/bip39-word/cloth/)[ #352 cloud ](/bip39-word/cloud/)[ #353 clown ](/bip39-word/clown/)[ #354 club ](/bip39-word/club/)[ #356 cluster ](/bip39-word/cluster/)[ #357 clutch ](/bip39-word/clutch/)[ #358 coach ](/bip39-word/coach/)[ #359 coast ](/bip39-word/coast/) 

[View all words starting with "C" ](/bip39-words/c/) 

## Seed phrase, key and recovery guides

- [How to Encrypt a Seed Phrase: AES, XOR and Steganography](/seed-phrase-encrypting-with-aes-xor-and-steganography/)
- [Bitcoin Improvement Proposal (BIP): Process and Deployed BIP List](/bitcoin-improvement-proposal/)
- [TON Seed Phrase: 24-Word Format vs 12-Word BIP39 Phrases](/seed-phrase-format-for-ton-wallets/)

[ Full BIP39 Wordlist ](/)