Englishfor English speakers
rapid
Adjective
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If an action or idea is rapid, it happens quickly.
rapid
Noun
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A fast part of a river or stream.
flow
Verb
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If something flows, it moves in a smooth and regular way.
The river flows gently to the sea.
flow
Noun
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A flow is a smooth regular movement of a liquid, gas, etc.
A major accident is blocking the flow of traffic on Yonge St., just north of Queen.