Ceremony
Ritual, Equation, Style
noun, suffix
The kanji and the word are exactly the same. That means they share meanings as well.
The reading is the same as what you learned with the kanji. In fact, this kanji's on'yomi AND kun'yomi are しき, so you can never go wrong.
式を見る
to view the formula
式を使う
to use a formula
式をあげる
to hold a ceremony
自分の式
one's own ceremony
計算の式
formula for a calculation
妹の式
one's sister's ceremony
式の三日前
three days before the ceremony
式の計算
formula calculation
式の一番最後
the very end of the ceremony
いったい式場はどこなんだ？
Where the heck is the ceremony being held?
開会式は九時にスタートする予定です。
The opening ceremony is scheduled for 9 a.m.
この計算の式、なんかちょっとおかしくない？
Isn't there something a bit wrong with the formula for this calculation?