えーんalso: ええん · えーーん · えーーーんMeanings1interjectionboohoo; waahchildren's languageOnomatopoeic crying sound, used especially by children or in a childish, playful manner.転ころんで、えーんと泣なき出だした。He fell down and started crying, 'Waah!'「えーん、おもちゃ取とられた!」と妹いもうとが泣ないた。My little sister cried, 'Boohoo, he took my toy!'