A hurricane that forms in the Western Pacific Ocean.
A severe tropical cyclone in the western North Pacific.
The name is derived either from Cantonese t'ai fung (a "great wind"), from Arabic tufan ("smoke"), or from Greek typhon (a "monster"). Aristotle used typhon for a wind-containing cloud (Meteorologica, III, 1).
Typhoon has been defined 7 different ways in documents like Meteorology Terminology, Ballistic Missile Defense, Coral Reef Information System Glossary, and 4 more.