To remove or clear a block or obstruction from.
In whist, to throw away a high card so as not to interrupt one's partner's long suit.
To free or make available.
To enable communication again, via telephone, instant messaging, etc., with (somebody previously blocked).
The removal of a block or blockage.
To remove from a package or container, particularly with respect to items that had previously been arranged closely and securely in a pack.
To empty containers that had been packed.
To unzip, decompress.
To undergo separation of its features into distinct segments.
To analyze a concept or a text; to explain.