Word #686 01010101101

fiber — BIP39 word #686

"fiber" is word #686 of the 2048 words in the official BIP39 English wordlist, between few and fiction. In a seed phrase it stands for the 11-bit value 01010101101, decimal index 685.

/faɪbə/ · noun: a thin thread of material, or plant matter in food that aids digestion

Russian: волокно

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):

stick between interest east frozen faculty fish feed festival field few

Position

#686 of 2048

Hex Index

0x2AD

4-Letter Prefix

fibe

About "fiber" in BIP39

"fiber" has 5 letters, but the first three, "fib", already identify it, because "fi" also begins 19 other words, among them fiction, field, figure and file. Three letters are enough for only 604 of the 2048 words.
"fiber" appears in one of the 24 official English test vectors of BIP39: vector #13 (word 4 of 12). Every official vector passes the checksum checker, and How BIP39 works shows how the entropy turns into such words.