0 an occasion when people show that they disagree with something by standing around a person in authority and not letting them leave until they agree to do what the people want
1 to surround someone in authority or the place where they work, in order to show that you disagree with something, and refuse to let them leave until they agree to do what you want:
Hundreds of farmers living in border areas on Tuesday gheraoed the office of the Deputy Commissioner of Amritsar to press for their demands of being provided basic facilities.
