announcement          
noun [ C or U ] uk/əˈnaʊns.mənt/ us/əˈnaʊns.mənt/
B1 公告,布告;通告;声明
something that someone says officially, giving information about something
  The president made an unexpected announcement this morning. 今天上午总统发表了一项出人意料的声明。 
 Synonyms: communication declaration (ANNOUNCEMENT)proclamationpronouncement statement 
  公告,布告;通告;声明
the act of announcing something
  The announcement of the changes has been delayed. 变革内容公布的时间推后了。 
 - More examples
 - Her announcement confirmed (that) she would be resigning as prime minister.
 - The protests are a delayed reaction to last week's announcement.
 - The announcement took Washington and Paris by surprise, but Downing Street had been expecting it.
 - There was a deathly hush after she made the announcement.
 - This announcement follows months of inaction and delay.