エメラルド婚こん式しき

noun

emerald wedding anniversary; 55th wedding anniversary

Refers specifically to the celebration of 55 years of marriage, named after the emerald gemstone.

• 両りょう親しんは今年ことし、エメラルド婚こん式しきを迎むかえます。

  My parents will celebrate their emerald wedding anniversary this year.