You use ~ to emphasize how good, or occasionally how bad, something is.
Salzburg is an ~ beautiful place to visit...
= exceedingly, exceptionally
ADV: ADV adj/adv emphasis
You use ~ to emphasize how good, or occasionally how bad, something is.
Salzburg is an ~ beautiful place to visit...
= exceedingly, exceptionally
ADV: ADV adj/adv emphasis
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012