monsoon
C1Substantiv/US /mɑnsˈuːn/ mäns-O͞ON; UK /mɑnsˈuːn/ mäns-O͞ON/
A wind blowing part of the year from one direction, alternating with a wind from the opposite direction; -- a term applied particularly to periodical winds of the Indian Ocean, which blow from the southwest from the latter part of May to the middle of.
