Ignorance of something is lack of knowledge about it.
I am embarrassed by my complete ~ of history...
N-UNCOUNT: oft N of/about n
Ignorance of something is lack of knowledge about it.
I am embarrassed by my complete ~ of history...
N-UNCOUNT: oft N of/about n
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012