Synonyms for Unwrap (same or very similar meaning)
WordNet sense 1 (remove the outer cover or wrapping of):
undo
WordNet sense 2 (make known to the public information that was previously known only to a few people or that was meant to be kept a secret):
break, disclose, discover, divulge, expose, impart, reveal, expose, bring out, give away, let out, let on
From the ODE community, based on WordNet
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