Monsoon (noun)

1. A seasonal wind, especially in the Indian Ocean and southern Asia, that blows from the southwest in summer and from the northeast in winter, bringing heavy rainfall.
2. A rainy season or rainy period, particularly in tropical regions.

Origin:

From the arabic word "mausim" meaning "season".

Examples:

1. The monsoon season brings heavy rains to the region.
2. The monsoon winds are responsible for the heavy rainfall in the region.
3. Monsoons are responsible for the flooding in the region.
4. The monsoons bring much needed water to the region.
5. Monsoons are a regular feature of the region's weather patterns.