Season

noun

2. One of the four natural divisions of the year, spring, summer, fall, and winter, in the North and South Temperate zones. Each season, beginning astronomically at an equinox or solstice, is characterized by specific meteorological or climatic conditions.
3. The two divisions of the year, rainy and dry, in some tropical regions.
4. A recurrent period characterized by certain occurrences, occupations, festivities, or crops.

   "the holiday season; tomato season."

5. A suitable, natural, or convenient time.

   "a season for merriment."