よく - Wiktionary, the free dictionary 良く, 善く: having astonishing ability or guts よくそんなこと 言 ( い ) えるね。 Yoku sonna koto ieru ne You've got guts saying something like that 能く: (literary) able to Sima Qian, Records of the Grand Historian, kanbun kundoku: 能 (よ) く 之 (これ) を 行 (おこな) う 者 (もの) yoku kore o okonau mono those