Word #1612 11001001011
siren — BIP39 word #1612
"siren" is word #1612 of the 2048 words in the official BIP39 English wordlist, between sing and sister.
In a seed phrase it stands for the 11-bit value
11001001011,
decimal index 1611.
/ˈsaɪərən/ · noun: a device that makes a loud warning sound, as on police cars
Russian: сирена
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
#1612 of 2048
Hex Index
0x64B
4-Letter Prefix
sire
About "siren" in BIP39
- "siren" has 5 letters, but the first three, "sir", already identify it, because "si" also begins 18 other words, among them sibling, sick, side and siege. Three letters are enough for only 604 of the 2048 words.
- "sire" is unique only within the English list: it also begins sirena in the Spanish list and sirene in the Portuguese list, so a four-letter backup should say which list it uses.