聆

'ku' adjective (archaic); Esp. 利し, 鋭し

sharp

'ku' adjective (archaic); Esp. 疾し, 鋭し

intense; strong; powerful

'ku' adjective (archaic); Esp. 疾し, 捷し

quick; rapid; fast

'ku' adjective (archaic); Esp. 敏し, 聆し

keen; sharp; clever