| 空 | kara aku sora | empty, hollow, bare, deserted |
| 開 | hiraku aku | open; initiate, begin, start |
| 撐 | sasaeru aku | prop up, support; brace; to push off (with a pole) |
| 撑 | sasaeru aku | prop up, support; brace |
| 饇 | aku | to eat too much, surfeited; to confer |
| 饜 | aku | be satiated, eat one's full |
| 鹼 | aku | alkaline, alkali, lye, salt |