A peaceful period is a time of relative calm and stability, often following a period of conflict. The term can be broken down into three crossword solutions: PAX (3 letters), TRUCE (5 letters), and LULL (4 letters). PAX is a Latin word meaning 'PEACE' or 'treaty of PEACE'. A TRUCE is an agreement between two or more parties to stop fighting for a certain period of time. Finally, a LULL is a temporary pause or break in activity. Together, these three words represent a period of PEACE and stability.