1.
ceremony, ritual
A formal event or ceremony.
〜式 is a suffix with two main meanings: (1) ceremony/ritual, and (2) style/type/method.
CEREMONIES:
- 結婚式: wedding ceremony
- 入学式: entrance ceremony
- 卒業式: graduation ceremony
- 開会式: opening ceremony
- 閉会式: closing ceremony
STYLES/TYPES:
- 日本式: Japanese-style
- 西洋式: Western-style
- 新式: new style
- 旧式: old style
OTHER USES:
- 数式: mathematical formula
- 方程式: equation