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English definition of “fall off”

fall off

phrasal verb with fall     /fɔːl/ verb [I] (past tense fell, past participle fallen)
If the amount , rate , or quality of something falls off, it becomes smaller or lower : Demand for new cars is falling off.Becoming and making smaller or lessBecoming and making less strong
(Definition of fall off from the Cambridge Learner's Dictionary © Cambridge University Press)

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