定てい礎そ式しき

noun

cornerstone ceremony; foundation stone ceremony

A formal ceremony held at the start of construction, often involving the laying of a cornerstone or foundation stone.

• 新あたらしい市し庁ちょう舎しゃの定てい礎そ式しきが来らい週しゅう行おこなわれる。

  The cornerstone ceremony for the new city hall will be held next week.