改元

かいげん【改元】

the change of the name of an era.

▲change from the Showa to the Heisei Era 昭和から平成に改元する.

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かいげん【改元】

a change in era name 《in accord with imperial succession》.

～する change the name of an era.

●「昭和」を「平成」と改元した. The era name was changed from “Shōwa” to “Heisei.”