合がっ衆しゅう国こくがっしゅうこくFreq.FrequencyTop 10,000Meanings1nounfederation; federal stateGeneral term for a union of states under a central government. Often used in country names like アメリカ合衆国.アメリカは合がっ衆しゅう国こくとして知しられている。America is known as a federal state.