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prohibit

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verb [transitive] British English pronunciation: prohibit /prəʊˈhɪbɪt/ 
Word Forms
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present tense
I/you/we/theyprohibit
he/she/itprohibits
present participleprohibiting
past tenseprohibited
past participleprohibited
  1. 1
    to officially stop something from being done, especially by making it illegal

    Smoking is prohibited in all areas of the building.

    prohibited drugs/weapons

    The sale of alcohol to young people is prohibited by law.

    prohibit someone from doing something:

    a rule prohibiting doctors from advertising their services

  2. 2
    to prevent something from happening or being done

    The cost of safety glass often prohibits its use in private buildings.

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