Word #566 01000110101
effort — BIP39 word #566
"effort" is word #566 of the 2048 words in the official BIP39 English wordlist, between educate and egg.
In a seed phrase it stands for the 11-bit value
01000110101,
decimal index 565.
/ˈɛfət/ · noun: physical or mental energy used to do something
Russian: усилие
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):
Position
#566 of 2048
Hex Index
0x235
4-Letter Prefix
effo
About "effort" in BIP39
- Two letters are enough: no other BIP39 word begins with "ef", which makes "effort" one of only 34 words that can be told apart this early.
- The same spelling is in the French BIP39 wordlist, but as word #632 (index 631), not #566. A wallet set to French reads "effort" as 01001110111 instead of 01000110101, and decodes index 565 as "dimanche".
- "effort" appears in one of the 24 official English test vectors of BIP39: vector #24 (word 3 of 24). Every official vector passes the checksum checker, and How BIP39 works shows how the entropy turns into such words.
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