1. estate   biannual   summer   annual   fortnight   Hint Half-n-half Clue   2. annuale   fortnight   monthly   annual   winter   Half-n-half Clue   3. giornaliero   quarter   autumn, fall   daily   winter   Half-n-half Clue   4. biennale   biannual   monthly   half-yearly   week   Half-n-half Clue   5. quindici giorni   spring   monsoon   fortnight   weekly   Half-n-half Clue   6. settimana   annual   weekly   week   autumn, fall   Half-n-half Clue   7. trimestre   monthly   monsoon   annual   quarter   Half-n-half Clue