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.
plural centennials. Learner's definition of CENTENNIAL. [count] US. : the 100th anniversary of something (such as an important event) We're celebrating the museum's centennial [=(Brit) centenary] this summer. [=celebrating the fact that it is 100 years old] Next year will be the centennial of the town's founding.