QUADRUPLY Meaning of QUADRUPLY in English quadruply BrE AmE ˈkwɒdr ʊp li -əp-; kwɒ ˈdruːp- AmE \ kwɑː ˈdruːp li -ˈdrʌp-; ˈkwɑːdr əp- Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012