inauguration

/ɪˌnɔːɡjəˈreɪʃən/
noun
  1. A formal ceremony to mark the beginning of a leader's term in office, such as a president or governor.
    • The mayor's inauguration was held at the city hall with a large crowd.
    • She attended the inauguration of the new university president last week.
    • Millions of people watched the presidential inauguration on television.
  2. The beginning or first use of something, such as a new system, project, or building.
    • The inauguration of the recycling program encouraged more people to go green.
    • The inauguration of the new subway line reduced traffic in the city.
    • The company celebrated the inauguration of its new headquarters with a party.
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