noun
state ceremony; imperial ceremony
Refers to formal ceremonies conducted by the state or imperial household, especially enthronement. Often used in historical or official contexts.
即位の礼は最も重要な大礼の一つです。
The enthronement ceremony is one of the most important state ceremonies.
noun
important life ceremony
Used for significant personal ceremonies such as weddings or funerals. Less common than sense 1 and may be considered somewhat literary.
結婚式や葬儀は人生の大礼です。
Weddings and funerals are important ceremonies in one's life.