ceremony
/ˈserɪməʊnɪ/noun
(pl. -ies)
1
- a formal religious or public occasion, typically one celebrating a particular event, achievement, or anniversary（尤指为庆祝某事件、成就或周年而举行的）宗教（或公共）庆典。
1.1
- an act or series of acts performed according to a traditional or prescribed form典礼, 仪式。
2
- mass noun the ritual observances and procedures required or performed at grand and formal occasions（重大场合的）礼仪：
the new Queen was proclaimed with due ceremony.
新女王依据相应礼仪宣告登基。
2.1
- formal polite behaviour〈正式〉礼貌：
he showed them to their table with great ceremony.
他彬彬有礼地把他们带到餐桌边。
短语
stand on ceremony
- usu. with negative insist on the observance of formalities讲究礼节; 拘礼：
we don't stand on ceremony in this house.
我们在这房子里不必拘礼。
without ceremony
- without preamble or politeness径直地, 不打招呼地; 不礼貌地：
he was pushed without ceremony into the bathroom.
他被粗暴无礼地推进了浴室。
词源
late Middle English: from Old French ceremonie or Latin caerimonia 'religious worship'， (plural) 'ritual observances'.