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Definition of monsoon
monsoon
/mɑːnˈsuːn/
mon · soon
Plural:monsoons
•Adjective:monsoonal
monsoon Lexical Profile
CEFR
B2
Grade
6
Tier
2
Usage
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• noun
1
The heavy, prolonged rainy season accompanying the seasonal shift in prevailing winds.
Example
"During the summer monsoon, the region experiences daily torrential downpours that replenish the rivers but frequently cause flooding."
2
A seasonal prevailing wind, especially in South and Southeast Asia, that blows from the southwest during summer months, bringing heavy rainfall, and from the northeast during winter.
Example
"The ancient trading ships relied heavily on the predictability of the Indian Ocean monsoon to navigate across the sea."
Synonyms
View all synonyms for monsoon• Rhymes for monsoon
Word Origin & Etymology
Late 16th century: via Portuguese 'monção' or Dutch 'moesson', derived from the Arabic word 'mawsim', meaning 'season'.
Cite this Entry
Wordmom. (2026). Definition of Monsoon. In Wordmom Dictionary. Retrieved Oct 14, 2026, from https://wordmom.com/dictionary/monsoon