(Internet slang) Short for 絶対に許せない (zettai ni yurusenai).

(Internet slang) Short for 絶望の起床.

Kyūjitai form of 絶望 (despair; hopelessness)

the fifteenth day of a month in the lunar calendar

(cryptography) public key

(cryptography) secret key

(cryptography) key exchange - an exchange of peers' keys at initialization phase of connection.

Kyūjitai form of 声望 (“prestige; reputation; popularity”)

black key (of a piano, etc.)

white key (of a piano, etc.)