What is Forbid?

Forbid definition and meaning on Dictionary terms:
verb (used with object), forA.bade or forA.bad or, forA.bidA.den or, forA.bidA.ding.
to command (a person) not to do something, have something, etc., or not to enter some place: to forbid him entry to the house.
to prohibit (something); make a rule or law against: to forbid the use of lipstick; to forbid smoking.
to hinder or prevent; make impossible.
to exclude; bar: Burlesque is forbidden in many cities.