高木 こうぼく Meanings Noun tall tree Kanji 高 high. Read as コウ. 木 tree. Read as ボク. Words containing 高木 亜高木 (あこうぼく) subcanopy tree 高木層 (こうぼくそう) overstory (overstorey) 落葉高木 (らくようこうぼく) deciduous tall tree And 1 more. Jinuma: Japanese Dictionary · Word lists