Word #1 00000000000

abandon — BIP39 word #1

"abandon" is the first of the 2048 words in the official BIP39 English wordlist, just before ability. In a seed phrase it stands for the 11-bit value 00000000000, decimal index 0.

/əˈbændən/ · verb: to leave behind or give up completely

Russian: покинуть

Binary Representation

All eleven bits are 0: it is the only index without a 1-bit.

One wrong bit turns it into (leftmost bit first):

length divorce cactus avoid amount advice acoustic absurd above able ability

Position

#1 of 2048

Hex Index

0x000

4-Letter Prefix

aban

About "abandon" in BIP39

"abandon" has 7 letters, but the first three, "aba", already identify it, because "ab" also begins 9 other words, among them ability, able, about and above. Three letters are enough for only 604 of the 2048 words.
The same spelling is in the French BIP39 wordlist, but as word #2 (index 1), not #1. A wallet set to French reads "abandon" as 00000000001 instead of 00000000000, and decodes index 0 as "abaisser".
"abandon" appears in three of the 24 official English test vectors of BIP39: vectors #1 (words 1–11 of 12), #5 (words 1–17 of 18) and #9 (words 1–23 of 24). Every official vector passes the checksum checker, and How BIP39 works shows how the entropy turns into such words.