刻苦勉励 こっくべんれい Meanings Noun, する verb being arduous; working diligently enduring hardships Kanji 刻 engrave. Read as コク. 苦 suffer 勉 strive. Read as ベン. 励 encourage. Read as レイ. Word lists Yojijukugo (四字熟語) Jinuma: Japanese Dictionary · Word lists