soap — BIP39 word #1646
"soap" is word #1646 of the 2048 words in the official BIP39 English wordlist, between snow and soccer.
In a seed phrase it stands for the 11-bit value
11001101101,
decimal index 1645.
/səʊp/ · noun: a substance used with water for washing and cleaning
Russian: мыло
Binary Representation
Seven 1-bits and four 0-bits; 330 of the 2048 indexes have exactly seven 1-bits.
One wrong bit turns it into (leftmost bit first):
Position
#1646 of 2048
Hex Index
0x66D
4-Letter Prefix
soap
About "soap" in BIP39
- "soap" has 4 letters, but the first three, "soa", already identify it, because "so" also begins 20 other words, among them soccer, social, sock and soda. Three letters are enough for only 604 of the 2048 words.
- "soap" appears in one of the 24 official English test vectors of BIP39: vector #17 (word 10 of 18). Every official vector passes the checksum checker, and How BIP39 works shows how the entropy turns into such words.
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Word #1646 in the Other 9 BIP39 Wordlists
Similar Words — Check Carefully During Recovery
3 BIP39 words differ from "soap" by just a single letter — the most common source of typos when a seed phrase is entered by hand:
Read aloud, "soap" /səʊp/ is one sound away from these 2 words: