noun, noun or participle which takes 'suru'
prohibition; ban; forbidden rule
Refers to a rule that forbids something; often used in formal or legal contexts. Can be used as a suru-verb meaning 'to prohibit'.
この施設では喫煙は禁則事項です。
Smoking is a prohibited matter in this facility.
新しい
Late-night outings were prohibited by the new regulations.