noun
Republic Day
A national holiday in some countries, such as India (January 26) or Italy (June 2). The specific date and country depend on context.
インドの共和記念日は1月26日です。
India's Republic Day is January 26th.
共和記念日にはパレードが行われます。
A parade is held on Republic Day.
Compound of 共和 (republic) + 記念日 (anniversary day).