1. That which comes in to one as a return from property or possessions, especially of an extensive kind: Revenue can be the income from any source, but especially when large and not directly earned.
2. The collective items or amounts that constitute an income: Revenue can especially be that of a person having extensive landed possessions, a ruler, city, state, etc.
3. The annual income of a government or state from all sources: Taxation by a political unit is one kind of revenue out of which the public expenses are defrayed.
4. The department of the civil service that deals with the collection of national funds: A revenue can make a request or order for tax which is unconditionally backed up by the state.