凯 (kǎi): Triumphant, victorious. It can also refer to the music played to celebrate a victory.
旋 (xuán): To turn back, to return.
而 (ér): A classical grammatical particle that connects two verbs or clauses, functioning like “and then” or “thereby”. It links the state of “triumph” to the action of “returning.”
归 (guī): To return, to go back to one's home or origin.
The characters literally combine to mean “triumphant returning and then coming home.” The structure `凯旋` (triumphant return) is linked to `归` (return home), with the character `而` smoothly connecting them. This slight redundancy adds a formal, rhythmic quality typical of Chinese idioms, emphasizing both the victory and the homecoming.