A small but significant tendency for spring to start earlier and for autumn to end later; the result of global warming.

(astronomy) A constellation that is only above the horizon (and thus visible) for part of the year.

(travel industry) The time between high and low season in a travel market, or, if the market is divided into four segments, the time just below high season.

Advent, the period from Advent Sunday (inclusive) through the start of Epiphany. / Christmastide, Yuletide; the Twelve Days of Christmas, starting on Christmas Day and ending on Epiphany, January 6.

Any time or occasion suitable or natural for gaining understanding, values, wisdom, knowledge, or skill.

Especially in tropical regions, the part of the year when most of the rain falls.

The part of the year when the monsoon occurs, the rainy season.

The portion of the year during which the most rain falls.

Any season in which little rain falls; used especially in the tropics where it alternates with the rainy season

(economics) A type of unemployment explained by a seasonal variation in the structure of jobs and/or labour offered. Seasonal unemployment typically repeats the same pattern annually.