1. To use a position or power of authority to forbid someone or something from doing something. The principal prohibited us from setting up a stall in the school cafeteria to sell our cupcakes. The new law prohibits companies from firing employees for poor performance without issuing a series of formal notices first.
2. To prevent or preclude someone or something from doing something. Your history with that company prohibits you from consideration for the job, I'm afraid. Clear opposition from the majority party in congress prohibits a new healthcare bill from ever succeeding.
3. To use a position or power of authority to forbid someone or something from obtaining or achieving something. The new law would prohibit thousands citizens from the right to vote.
4. To prevent or preclude someone or something from obtaining or achieving something. While the study gives us an interesting indication, the small sample size prohibits us from a clear understanding of cause and effect. Dave's emotional issues have prohibited him from an intimate, meaningful relationship with anyone.
prohibit someone from something
1. to prevent someone from doing something. The committee voted to prohibit people from leaving before the meeting was over. They prohibit anyone from being seated after the first act has started.
2. to keep someone out of some place. Our policy is to prohibit people from the beach area after dark. State law prohibits children from this dangerous area while the machines are running.
prohibit something from something
1. to prevent something from happening or from doing something. My mother prohibits me from going out with friends on school nights. Why do you want to prohibit the cars from traveling on this street during rush hour?
2. to keep something out of or away from something or some place. The law prohibited bicycles from the sidewalks. The city council prohibits unleashed dogs from the public parks.