| 凹 | kubomu kubomi | concave, hollow, depressed; a pass, valley |
| 圩 | tsutsumi kishi kubomu | dike, embankment |
| 窊 | kubomu | pit, vault; store in pit; (Cant.) 手窊, the arm |
| 窪 | kubo kubomu | hollow; pit; depression; swamp |
| 窳 | kubomu | dirty, useless, weak, powerless; cracked, a flaw |