blacklist
Pronunciation:
/ˈblæklɪst/noun
Definitions
A list or set of people or entities to be shunned or banned.
Example: The software included a lengthy blacklist of disreputable websites to block.
verb
Definitions
To place on a blacklist; to mark a person or entity as one to be shunned or banned.
Example: You can blacklist known spammers with that button.