After a record is expunged must I disclose that I was ever charged/convicted?

Question Details:

I am 20 years old from NJ and attend school in RI. I was arrested and charged in RI. "Destruction of Complaint" is on my file for next year. What does this mean? And, if my record is expunged, will it not show up on a background check? What about when applying for an ivy league school? Can I also say "no" to being charged/convicted for a misdemeanor/crime/arrest. I feel as though Destruction of Complaint is expungement but I want to be sure. Also, What is the difference between seal and expunge?

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