forbid

verb [T]

/fəˈbɪd/

/fɚ-/ (present participle forbidding, past tense forbade or old use forbad, past participle forbidden)

Definition

B2 to refuse to allow something, especially officially, or to prevent a particular plan of action by making it impossible: The law forbids the sale of cigarettes to people under the age of 16. [+ to infinitive] He's obviously quite embarrassed about it because he forbade me to tell anyone. He is forbidden from leaving the country.Forbidding and banning things

(Definition of forbid verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)