Существительное
A subplot; a plot that is not the main plot of a story.
- Примеры
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I have not been able to discover the source of the very curious underplot of The Captives.
Другие примеры (1)
Thus, again to quote Mr. Homer Smith, it has been held that 'In general the pastoral incidents serve as an underplot, utterly foreign in spirit to the main plot.'
A secret scheme or trick.
Глагол
To form secret schemes or plots.
Употребление- непереходный глагол