mindmap root((确保)) ensure implies a virtual guarantee: the government has ~d the safety of the foreign minister. insure sometimes stresses the taking of necessary measures beforehand to make a result certain or to provide for any probable contingency: careful planning should ~ the success of the party. assure distinctively implies the removal of doubt, worry, or uncertainty from the mind: I ~ you that no one will be harmed. secure implies the taking of action to ensure safety, protection, or certainty against adverse contingencies: ~ their cooperation by payment of a large fee.