Process is my best guess, hope I helped!
Singular definition. In nouns, pronouns, and verbs, the grammatical form that refers to only one thing. In the following sentence, the singular words are italicized: “The police officer stops anyone who crosses before the light changes.” (from google)
This a simile. This is because a simile uses like or as to compare two things. A metaphor doesn't use like or as, but it still compares things.
Answer:
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