typhoon vs. tsunami

typhoon

noun

  1. Meteorology. a tropical cyclone in the western Pacific Ocean or northern Indian Ocean, having sustained winds of at least 64 knots (74 miles per hour, 33 meters per second): typhoons form in waters with surface temperatures of about 80°F (27°C), intensifying as temperatures rise. Compare hurricane ( def 1 ).
  2. Typhoon, Military.
    1. a single-engine British ground attack aircraft of World War II.
    2. NATO's name for a class of nuclear-powered Soviet ballistic missile submarine carrying 20 multiwarhead missiles.

tsunami

noun

  1. an unusually large sea wave produced by a seaquake or undersea volcanic eruption.