quadrennial
/kwɑˈdrɛniəl/
adjective
- Happening once every four years.
- The company's quadrennial review helps plan long-term goals.
- Many countries hold quadrennial elections for their national leaders.
- The Olympic Games are a quadrennial event that brings together athletes from around the world.
- Lasting for four years.
- The president serves a quadrennial term before facing reelection.
- Students in the quadrennial program graduate after four years of study.
- The research project was quadrennial, with results published at the end of the fourth year.