To hinder or prevent.
To exclude or shut out; to bar.
To prohibit (a person or company that has been convicted of criminal acts in connection with a government program) from future participation in that program.
To avoid.
To ban.
To mark as taboo.
Culturally forbidden.
Excluded or forbidden from use, approach or mention.
An inhibition or ban that results from social custom or emotional aversion.
Something which may not be used, approached or mentioned because it is sacred.