木もっ婚こん式しき

noun

wooden wedding anniversary; 5th wedding anniversary

Refers specifically to the 5th wedding anniversary, following the traditional naming convention for anniversaries.

• 今年ことしは木もっ婚こん式しきだから、木きでできたプレゼントを贈おくろうと思おもう。

  This year is our wooden wedding anniversary, so I'm thinking of giving a gift made of wood.