From English-日本語 (にほんご) FreeDict+WikDict dictionary ver. 2022.11.18: flutter //ˈflʌtə// //ˈflʌtɚ// /[-ɾɚ]/ <v> 飛び回る to flap or wave quickly
flutter //ˈflʌtə// //ˈflʌtɚ// /[-ɾɚ]/ <v> 飛び回る to flap or wave quickly