The difference between Waterspout and Willy willy
When used as nouns, waterspout means a whirlwind that forms over water, not associated with a mesocyclone of a thunderstorm (contrary to a true tornado), whereas willy willy means a dust devil.
check bellow for the other definitions of Waterspout and Willy willy
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Waterspout as a noun:
A whirlwind that forms over water, not associated with a mesocyclone of a thunderstorm (contrary to a true tornado).
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Waterspout as a noun:
A true tornado that passes over a body of water.
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Waterspout as a noun:
A channel through which water is discharged, especially from the gutters of a roof.
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Willy willy as a noun (Australia):
A dust devil; a tornado
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Willy willy as a noun (now rare):
A tropical cyclone in Australia.