| Answer | Crossword Clue |
|---|---|
| biennial | an event that occurs every two years |
| biennials | BIENNIAL, an event that occurs every two years |
| biennale | a show that occurs every two years |
| biennales | BIENNALE, a show that occurs every two years |
| quadrennials | QUADRENNIAL, an event taking place every four years |
| quadrennial | lasting four years; occurring once every four years / an event taking place every four years |
