monsoon
n. countablen. a season of very heavy rain and strong winds, especially in South Asia. It can also mean the heavy rain itself.
n. a seasonal prevailing wind in the region of South and Southeast Asia, blowing from the southwest between May and September and bringing rain, or from the northeast between October and April.
The monsoon brings much-needed rain to the farmers.
During the monsoon, many streets in the city become flooded due to the intense daily downpours.
The arrival of the summer monsoon is critical for the subcontinent's agriculture, yet its increasing unpredictability poses a significant threat to food security and regional infrastructure.
From Portuguese monção and Dutch moesson, from Arabic مَوْسِم (mawsim, “season”), from وَسَمَ (wasama, “to mark, to brand”).
Often used with the definite article ('the monsoon') when referring to the specific annual season.