Englishfor English speakers
propagation
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noun
the spreading of something (a belief or practice) into new regions
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noun
(= generation)
the act of producing offspring or multiplying by such production
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noun
the movement of a wave through a medium
plot
Noun
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A plot is the course of a story. It is the main things that happen in a story.
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A plot is a scheme for people to do something secretly.