| Answer | Crossword Clue |
|---|---|
| lustral | occurring every five years; quinquennial |
| quinquennially | QUINQUENNIAL, lasting five years; occurring every fifth year |
| quinquennial | lasting five years; occurring every fifth year |
| biennials | occurring every two years |
| biennial | occurring every two years |
| quadrennial | occurring every four years. |
| vicennial | occurring every twenty years |
| SENATERACE | Event occurring every six years |
| GENERALELECTION | Event occurring twice every eight years |
| quadrennially | QUADRENNIAL, lasting four years; occurring once every four years |
| quadrennial | lasting four years; occurring once every four years / an event taking place every four years |
