hard openingnoun [ C ]
uk/ˌhɑːd ˈəʊ.pən.ɪŋ//ˌhɑːrd ˈoʊp.nɪŋ/specializedan occasion when a business is opened to the public for the first time, not just to a limited number of people, in a way that is intended to attract a lot of attention
Compare
soft opening