| Verb | 1. | federalize - unite on a federal basis or band together as a league; "The country was federated after the civil war"unite, unify - act in concert or unite in a common purpose or belief | |
| 2. | federalize - put under the control and authority of a federal government | |
| 3. | federalize - enter into a league for a common purpose; "The republics federated to become the Soviet Union"merge, unify, unite - become one; "Germany unified officially in 1990"; "Will the two Koreas unify?" | |