dad — BIP39 word #440
"dad" is word #440 of the 2048 words in the official BIP39 English wordlist, between cycle and damage.
In a seed phrase it stands for the 11-bit value
00110110111,
decimal index 439.
/dæd/ · noun: an informal word for father
Russian: папа
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
#440 of 2048
Hex Index
0x1B7
4-Letter Prefix
dad
About "dad" in BIP39
Word #440 in the Other 9 BIP39 Wordlists
Similar Words — Check Carefully During Recovery
3 BIP39 words differ from "dad" by just a single letter — the most common source of typos when a seed phrase is entered by hand:
Swap two neighbouring letters and "dad" becomes add, another valid word that is easy to miss when copying a phrase.
Read aloud, "dad" /dæd/ is one sound away from these 2 words: