monsoon

This term describes a large-scale atmospheric phenomenon where wind patterns reverse direction seasonally. While often used interchangeably with the rainy season, it specifically refers to the wind system that drives the precipitation. In South Asia, the arrival of these winds is a critical event for agriculture and water security. Grammatically, the word is used as a countable noun when referring to specific seasonal occurrences or different regional systems. It can also function as an uncountable noun when discussing the general climatic phenomenon of seasonal wind reversal.