“Nightfall! Nightfall!! You are my mortal enemy”. The dominant figure of speech above is a/an________

Explanation

Apostrophe is the correct answer. "Nightfall" is directly addressed as if it were a living being, this is the figurative quality of an Apostrophe. This should not be confused with Personification as Apostrophe is used to address an absent person as if present and a dead person or subject matter as if living.

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