Question

What is a monsoon?

Answer 1

this should help
https://en.wikipedia.org/wiki/Monsoon

Answer 2

a seasonal prevailing wind in the region of South and Southeast Asia, blowing from the southwest between May and September and bringing rain (the wet monsoon ), or from the northeast between October and April (the dry monsoon ).

Answer 3

Monsoon (UK: /mɒnˈsuːn/; US: /mɑːnˈsuːn/) is traditionally defined as a seasonal reversing wind accompanied by corresponding changes in precipitation, but is now used to describe seasonal changes in atmospheric circulation and precipitation associated with the asymmetric heating of land and sea.