Operation
Part of speech: noun
Definition: The method by which a device performs its function. The method or practice by which actions are done. A planned undertaking. A business or organization. a surgical procedure. a procedure for generating a value from one or more other values (the operands; the value for any particular operands is unique) a military campaign (w:Operation Desert Storm)
Example sentence: The Pentagon still has not given a name to the Iraqi war. Somehow 'Operation Re-elect Bush' doesn't seem to be popular.
Administration
Part of speech: noun
Definition: The act of administering; government of public affairs; the service rendered, or duties assumed, in conducting affairs; the conducting of any office or employment; direction; management.A body who administers; the executive part of government; the persons collectively who are entrusted with the execution of laws and the superintendence of public affairs; the chief magistrate and his cabinet or council; or the council, or ministry, alone, as in Great Britain.The act of administering, or tendering something to another; dispensation; as, the administration of a medicine, of an oath, of justice, or of the sacrament.Management.