hurricanes occur in the atlantic a typhoon is a hurricane but in the pacific ocean monsoons are seasonal storms that can last over a month and a tsunami is a wall of water caused by earthquakes usually
Tsunami - big, destructive wave usually caused by earthquake activity
Monsoon - very heavy rains somtimes lasting for many weeks
Hurricane and typhoon - basically different names for the same thing. Tho typhoon is sometimes used for tornados as well. Heavy destructive roating winds and rains lasting for several hours will a lull in the middle called the Eye.