Definition of bicentennial in English:

bicentennial

noun

  • The two-hundredth anniversary of a significant event.

    ‘a year-long celebration marking the bicentennial of Poe's birth’

adjective

  • Relating to a two-hundredth anniversary.

    ‘the bicentennial celebrations’

Pronunciation:

bicentennial

/bʌɪsɛnˈtɛnɪəl/