Lenten is a kind of season that is observed in the Christian faith during the 40 days leading up to Easter. FLU is a kind of season that is characterized by the spread of influenza viruses, usually during the winter months. RAINY is a kind of season that is characterized by wet weather and precipitation. Rzdyek is a kind of season that is observed in the Jewish faith during the 10 days leading up to Yom Kippur.