Remember that day
Meaning: This means to ask someone to think back to a particular day in the past. It's like saying, Can you recall what happened on that particular day?
Choice of Words: Remember means to bring to mind a memory or event from the past. That is a pronoun used to refer to something specific that has already been mentioned or is understood from the context. Day is a noun that refers to a 24-hour period. When you put them together, "Remember that day" is asking someone to recall a specific day from the past.
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Related Expressions