train — BIP39 word #1849
"train" is word #1849 of the 2048 words in the official BIP39 English wordlist, between tragic and transfer.
In a seed phrase it stands for the 11-bit value
11100111000,
decimal index 1848.
/treɪn/ · noun: a line of connected railway carriages pulled by an engine
Russian: поезд
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):
Position
#1849 of 2048
Hex Index
0x738
4-Letter Prefix
trai
About "train" in BIP39
- "train" has 5 letters, but the first four, "trai", already identify it, because "tra" also begins 9 other words, among them track, trade, traffic and tragic.
- The same spelling is in the French BIP39 wordlist, but as word #1912 (index 1911), not #1849. A wallet set to French reads "train" as 11101110111 instead of 11100111000, and decodes index 1848 as "talisman".
- "train" appears in one of the 24 official English test vectors of BIP39: vector #19 (word 12 of 12). Every official vector passes the checksum checker, and How BIP39 works shows how the entropy turns into such words. As the last word of vector #19, its final 4 bits, 1000, are the checksum of the 12-word phrase.
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Word #1849 in the Other 9 BIP39 Wordlists
Similar Words — Check Carefully During Recovery
3 BIP39 words differ from "train" by just a single letter — the most common source of typos when a seed phrase is entered by hand:
Read aloud, "train" /treɪn/ is one sound away from these 3 words: