---
title: "BIP39 Word #1606: silly — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/silly/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #1606 11001000101 

# silly — BIP39 word #1606

"**silly**" is word #1606 of the 2048 words in the official BIP39 English wordlist, between [silk](/bip39-word/silk/) and [silver](/bip39-word/silver/). In a seed phrase it stands for the 11-bit value `11001000101`, decimal index 1605\. 

/ˈsɪli/  · _adjective:_ foolish or not sensible, often in a funny way 

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

## 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):

[emerge](/bip39-word/emerge/)[master](/bip39-word/master/)[trim](/bip39-word/trim/)[suffer](/bip39-word/suffer/)[scheme](/bip39-word/scheme/)[smile](/bip39-word/smile/)[skirt](/bip39-word/skirt/)[situate](/bip39-word/situate/)[sight](/bip39-word/sight/)[similar](/bip39-word/similar/)[silk](/bip39-word/silk/) 

Position

Hex Index

0x645

4-Letter Prefix

sill

## About "silly" in BIP39

- "silly" has 5 letters, but the first four, **"sill"**, already identify it, because **"sil"** also begins [silent](/bip39-word/silent/), [silk](/bip39-word/silk/) and [silver](/bip39-word/silver/).
- **"sill"** is unique only within the English list: it also begins silla in the [Spanish list](/spanish/) and sillaba in the [Italian list](/italian/), so a four-letter backup should say which list it uses.

## Word #1606 in the Other 9 BIP39 Wordlists

[Czech](/czech/) srub 

[French](/french/) réclamer 

[Italian](/italian/) seggiola 

[Japanese](/japanese/) はんぺん 

[Korean](/korean/) 즐거움 

[Portuguese](/portuguese/) ralado 

[Spanish](/spanish/) retorno 

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

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

## Similar Words — Check Carefully During Recovery

Read aloud, "silly" /ˈsɪli/ is one sound away from these 2 words: 

[city /ˈsɪti/](/bip39-word/city/)[silk /sɪlk/](/bip39-word/silk/) 

Words sharing the first three letters "sil":

[silent](/bip39-word/silent/)[silk](/bip39-word/silk/)[silver](/bip39-word/silver/) 

## More BIP39 Words Starting with "S"

[ #1602 sight ](/bip39-word/sight/)[ #1603 sign ](/bip39-word/sign/)[ #1604 silent ](/bip39-word/silent/)[ #1605 silk ](/bip39-word/silk/)[ #1607 silver ](/bip39-word/silver/)[ #1608 similar ](/bip39-word/similar/)[ #1609 simple ](/bip39-word/simple/)[ #1610 since ](/bip39-word/since/) 

[View all words starting with "S" ](/bip39-words/s/) 

## Seed phrase, key and recovery guides

- [What Is BIP39? The Standard Behind Seed Phrases](/bip39-the-foundation-of-crypto-wallet-security/)
- [Seed Phrase Examples: 12, 18 and 24 BIP39 Mnemonic Phrases](/mnemonic-words-examples-for-crypto-security-bip39/)
- [How to Protect Your Crypto Wallet from Phishing](/protect-crypto-wallet-from-phishing/)

[ Full BIP39 Wordlist ](/)