Pronunciation: (tī-fOOn'),[key] —n. 1. a tropical cyclone or hurricane of the western Pacific area and the China seas.
2. a violent storm or tempest of India.
3. (cap.) Mil. a. a single-engine British ground attack aircraft of World War II.
b. NATO's name for a class of nuclear-powered Soviet ballistic missile submarine carrying 20 multiwarhead missiles.