wedding; marriage ceremony; nuptials
Refers to the ceremony itself, not necessarily the reception or party afterward. Common collocations include 結婚式を挙げる, 結婚式に出席する, and 結婚式場.
We are having our wedding in Kyoto next month.
I attended a friend's wedding.
We plan to hold our wedding next spring.
I bought a suit to attend my friend's wedding.
I invited him to the wedding.
A new wedding hall opened near the station.