Word #1638 11001100101

smile — BIP39 word #1638

"smile" is word #1638 of the 2048 words in the official BIP39 English wordlist, between smart and smoke. In a seed phrase it stands for the 11-bit value 11001100101, decimal index 1637.

/smaɪl/ · verb: to turn up the corners of your mouth to show happiness

Russian: улыбка

Binary Representation

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

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

erosion million uncover syrup seven silly solid soap slow smooth smart

Position

#1638 of 2048

Hex Index

0x665

4-Letter Prefix

smil

About "smile" in BIP39

"smile" has 5 letters, but the first three, "smi", already identify it, because "sm" also begins small, smart, smoke and smooth. Three letters are enough for only 604 of the 2048 words.
"smil" is unique only within the English list: it also begins smilzo in the Italian list and smilstvo in the Czech list, so a four-letter backup should say which list it uses.