inauguration
noun /ɪˌnɔːɡjəˈreɪʃn/
  /ɪˌnɔːɡjəˈreɪʃn/
 - [uncountable, countable] a special ceremony at which a new public official or leader is introduced or a building or organization is officially opened
- the President’s inauguration
 - an inauguration speech
 
 - [uncountable] (formal) the introduction of a new development or an important change
- the inauguration of an era of free trade