Choose the word which is different from the rest.

Tempest
Hurricane
Cyclone
Monsoon

The answer is D. Monsoon.

A tempest is a violent storm, especially with thunder and lightning. A hurricane is a tropical cyclone with sustained winds of 74 miles per hour or more. A cyclone is a tropical cyclone with sustained winds of 74 miles per hour or more that occurs in the Indian Ocean or the western Pacific Ocean. A monsoon is a seasonal prevailing wind that blows from the northeast in the summer and from the southwest in the winter in the Indian subcontinent.

Monsoons are different from the other three words because they are not associated with storms. Tempests, hurricanes, and cyclones are all types of storms. Monsoons are seasonal winds that are caused by the difference in temperature between the land and the ocean.