如雷贯耳 rúléiguàn'ěr well-known Origin Definitions Defs Strokes Stroke Words Sentences Sents 如 rú preposition to be like to be like; to be similar to; as if雷 léi noun thunder thunder; the loud noise caused by atmospheric electrical discharge贯耳 貫耳 guàn'ěr to ring in one's ears (literary) to ring in one's ears; to be heard; (figuratively) to be well-known (often used in the idiom 如雷贯耳 rúléiguàn'ěr)