Tornado
A rotating column of air usually accompanied by a funnel-shaped downward extension of a cumulonimbus cloud and having a vortex several hundred yards in diameter whirling destructively at speeds of up to 500 miles (800 kilometers) per hour.
龙卷风,陆龙卷：一种纵向的气旋,伴随有倒漏斗形的积雨云,涡流直径达几百码,以每小时五百英里（八百公里）的速度移动,其旋转具有极大的毁坏性
Typhoon
A tropical cyclone occurring in the western Pacific or Indian oceans.
台风：发生在西太平洋或印度洋的热带暴风
A severe tropical cyclone originating in the equatorial regions of the Atlantic Ocean or Caribbean Sea,traveling north,northwest,or northeast from its point of origin,and usually involving heavy rains.
飓风：一种猛烈的热带风暴,形成于大西洋或加勒比海赤道地区,从形成地向北、西北或东北移动,通常携有大量雨水