| Verb | 1. | federalise - put under the control and authority of a federal government Synonyms: federalize |
| 2. | federalise - enter into a league for a common purpose; "The republics federated to become the Soviet Union" Synonyms: federate, federalize | |
| 3. | federalise - unite on a federal basis or band together as a league; "The country was federated after the civil war" Synonyms: federalize, federate |