convention  
noun uk/kənˈven.ʃən/ us/kənˈven.ʃən/
  (MEETING)      
 C1 [ C ]大会;会议 
a large formal meeting of people who do a particular job or have a similar interest, or a large meeting for a political party
  the national Democratic convention 民主党全国大会 
 Where are they holding their party convention? 他们在哪里召开党员大会? 
 She addressed hundreds of attendees at the International Reading Association's annual convention.
 Compare: awayday conclaveconference (MEETING)congress (MEETING)consultationconvocation forum (MEETING)meetingseminarsummit (MEETING)symposium 
 - More examples
- Amid all the razzle-dazzle of the party convention, it was easy to forget about the real political issues.
- The Democrats have chosen the Texas state treasurer as the keynote speaker at their convention.
- The Governor of New York delivered a rousing speech to the national convention.
- 25,000 convention delegates from across the world converge for the Policy Institute's annual meeting.
- He took his kids to a Star Trek convention.
  (CUSTOM)         
 C1 [ C or U ]传统;(尤指社会)习俗,常规,惯例 
a usual or accepted way of behaving, especially in social situations, often following an old way of thinking or a custom in one particular society
  They defied/flouted/broke with convention by giving up their jobs and becoming self-sufficient. 他们离经叛道,放弃了工作,开始过自给自足的生活。 
 Convention dictates that it is the man who asks the woman to marry him and not the other way round. 根据习俗,应由男人向女人求婚而不是反过来。 
 In many countries it is the/a convention to wear black at funerals. 在葬礼上穿黑色的衣服是许多国家的习俗。 
  [ C ](艺术、写作上的)传统手法 
a common way of showing something in art or writing
  an artistic convention 传统艺术手法 
   (AGREEMENT)      
 [ C ]公约;协定 
a formal agreement between country leaders, politicians, and states on a matter that involves them all
  the Geneva Convention 日内瓦公约 
 a convention on human rights 人权公约