A belief in ~ is the belief that it is acceptable and good to have sexual relationships without marrying, often several relationships at the same time. (OLD-FASHIONED)
N-UNCOUNT
A belief in ~ is the belief that it is acceptable and good to have sexual relationships without marrying, often several relationships at the same time. (OLD-FASHIONED)
N-UNCOUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012