Regarding Facilities and Areas and the Status of United States Armed Forces in Japan, signed at Tokyo on January 25, 2008, Noting situations involving both countries,
Familiarity information: BICENTENNIAL used as a noun is very rare. â¢ BICENTENNIAL (adjective). The adjective BICENTENNIAL has 1 sense: 1. of or relating to or completing a period of 200 years. Familiarity information: BICENTENNIAL used as an adjective is very rare.
A centennial refers to the 100th year, so it itself is only one year. If it was 100 years since the birth of someone or some historical event, this year would be regarded as the centennial year. A century refers to a complete set of 100 years. 2 people found this useful.