inaugural inaugural /ˌɪˈnɔgjɝəl/

adjective

1. () Serving to set in motion  ( initiative , initiatory , maiden , first , inaugural )
   serving to set in motion
    The magazine's inaugural issue
   the magazine's inaugural issue
    The initiative phase in the negotiations
   the initiative phase in the negotiations
    An initiatory step toward a treaty
   an initiatory step toward a treaty
    His first (or maiden) speech in Congress
   his first (or maiden) speech in Congress
    The liner's maiden voyage
   the liner's maiden voyage
   
2. () Occurring at or characteristic of a formal investiture or induction  ( inaugural )
   occurring at or characteristic of a formal investiture or induction
    The President's inaugural address
   the President's inaugural address
    An inaugural ball
   an inaugural ball
   

noun

1. () An address delivered at an inaugural ceremony (especially by a United States president)  ( inaugural address , inaugural )
   an address delivered at an inaugural ceremony (especially by a United States president)
   
2. The ceremonial induction into a position  ( inaugural , inauguration )
   the ceremonial induction into a position
    The new president obviously enjoyed his inauguration
   the new president obviously enjoyed his inauguration