TAUTONYM Meaning of TAUTONYM in English tautonym BrE AmE ˈtɔːt ə nɪm - ə n ɪm AmE \ ˈtɔːt ə n ɪm ˈtɑːt- ▷ tautonym|s z Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012