verb

• (transitive) To remove from a package or container, particularly with respect to items that had previously been arranged closely and securely in a pack.
  "They didn't have time to unpack their bags before going out to dinner."
• (intransitive) To empty containers that had been packed.
  "They didn't have time to unpack before going to dinner."
• (figurative, transitive) To analyze a concept or a text; to explain.
  "There may be another argument here, if we had time to unpack it, about modernism and the rise of the middle classes."
• (linguistics, intransitive, of a segment such as a vowel) To undergo separation of its features into distinct segments.
  "The rounded vowels [y] and [œ/ə] in Russian seem to unpack as glide-vowel sequences in words borrowed from French and German, […]"