verb (used with object)
to undo or remove the contents from (a box, trunk, etc.).
to remove (something) from a container, suitcase, etc.
to unburden, as the mind; reveal.
to decipher or discern (the meaning of symbols, statements, etc.): Each statement could be unpacked in the general theory.
to remove a pack or load from (a horse, vehicle, etc.).
verb (used without object)
to remove the contents of a container.
Origin: 1425–75; late Middle English unpakken. Related forms