Толковый словарь английского языка - opening

noun Date: 13th century 1. an act or instance of making or becoming open, an act or instance of beginning ; commencement, something that is open: as, a. breach, aperture, an open width ; span, an area without trees or with scattered usually mature trees that occurs as a break in a forest, two pages that face one another in a book, something that constitutes a beginning: as, a usually planned series of moves made at the beginning of a game of chess or checkers, a first performance, 4. occasion, chance, an opportunity for employment