Solutions Five-year period has 16 entries with similar clues
- 3-letter words
- eonBillion-year period
- 4-letter words
- agesYears and years
- 5-letter words
- yonksYears and years
- 6-letter words
- annalsA historical record of events year by year
- cyclesRecurring periods of years
- 7-letter words
- recordsNarrative of events year by year
- lustrumA period of five years
- centuryPeriod of 100 years
- 8-letter words
- pentagonA plane figure with five straight sides and five angles
- dog-daysHottest period of the year
- 9-letter words
- trienniumPeriod of three years
- millenniaThousand-year periods
- 10-letter words
- millenniumPeriod of thousand years
- 11-letter words
- quadrenniumFour-year period
- 12-letter words
- quinquennialOccurring every five years
- 13-letter words
- indian-summerUnexpectedly warm period late in the year