They both mean the same thing, but "prohibit" has a strong sense of being backed up by law or some other established rule. is used when something is against the law. It is a more formal word. (For example, the law prohibits any use of fireworks in my area.) -- You are prohibited by law to light refuse on fire in your back yard. -- Smoking in the non-smoking section is prohibited. -- A new law was passed yesterday to further prohibit the sale of tobacco to minors. -- According to company policy, leaving the building before the time your are scheduled to is prohibited. "Forbid" is far less neutral in that regard and has an almost admonishing or threatening tone. It's often used when dealing with actions that are taboo. is like a personal command. (For example, your parents or your religion can forbid you to do something. -- The father forbade his son from hanging around those juveniles. -- I forbid you from going there! It's too dangerous! -- For a vampire and a werewolf to associate is forbidden! -- It is forbidden for a teacher and a student to enter into a sexual relationship. http://lang-8.com/5840/journals/17865

forbidden fruit ... mmmm delicious! prohibited fruit doesn't sound as delicious :P

Thank u so much liza ur question is a very good

i think theres nothing difference on that who sentence in terms of Verb they have the same meaning. cowboy...