Čo je opening? Čo je opening? The act or an instance of becoming open or being made to open.An open space serving as a passage or gap.A breach or aperture. A clearing in the woods.The first part or stage, as of a book.The first performance: the opening of a play. A formal commencement of operation: attended the opening of the new museum. Games A specific pattern or series of beginning moves in certain games, especially chess.An opportunity affording a chance of success. See Synonyms at opportunity.An unfilled job or position; a vacancy.