Word #1165 10010001100

muscle — BIP39 word #1165

"muscle" is word #1165 of the 2048 words in the official BIP39 English wordlist, between multiply and museum. In a seed phrase it stands for the 11-bit value 10010001100, decimal index 1164.

/ˈmʌsl/ · noun: body tissue that tightens and relaxes to produce movement

Russian: мышца

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):

bag spice ranch light office night near mountain much mushroom museum

Position

#1165 of 2048

Hex Index

0x48C

4-Letter Prefix

musc

About "muscle" in BIP39

"muscle" has 6 letters, but the first four, "musc", already identify it, because "mus" also begins museum, mushroom, music and must.
The same spelling is in the French BIP39 wordlist, but as word #1287 (index 1286), not #1165. A wallet set to French reads "muscle" as 10100000110 instead of 10010001100, and decodes index 1164 as "louve".
"musc" is unique only within the English list: it also begins muscolo in the Italian list and muscular in the Portuguese list, so a four-letter backup should say which list it uses.
"muscle" appears in one of the 24 official English test vectors of BIP39: vector #23 (word 10 of 18). Every official vector passes the checksum checker, and How BIP39 works shows how the entropy turns into such words.