MOTHPROOF Meaning of MOTHPROOF in English mothproof BrE AmE ˈmɒθ pruːf § -prʊf AmE ˈmɔːθ- ˈmɑːθ- ▷ mothproof|ed t▷ mothproof|ing ɪŋ▷ mothproof|s s Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012