Kairos (καιρός) is an ancient Greek word meaning the right or opportune moment (the supreme moment). The ancient Greeks had two words for time, chronos and kairos. While the former refers to chronological or sequential time, the latter signifies a time lapse, a moment of indeterminate time in which everything happens. What is happening when referring to kairos depends on who is using the word. While chronos is quantitative, kairos has a qualitative, permanent nature. Kairos also means season in ancient and weather in modern Greek. The plural, καιροί (kairoi (Ancient Gk. and Mod. Gk.)) means the times.