| 機構 | きこう | mechanism, organization, organisation |
| 構造 | こうぞう | structure, construction |
| 構想 | こうそう | plan, plot, idea, conception |
| 構成 | こうせい | organization, organisation, configuration, composition |
| 構築 | こうちく | construction |
| 構図 | こうず | composition |
| 結構 | けっこう | splendid, nice, wonderful, delicious, sweet; sufficient, fine (in the sense of "I'm fine"), (by implication) no thank you; well enough, OK, tolerable; reasonably, fairly, tolerably; construction, architecture |
| 構う | かまう | to mind, to care about, to be concerned about; to care for, to look after; to prepare for; to intefere with, to meddle in; to tease |
| 構内 | こうない | premises, grounds, campus, in-house |
| 心構え | こころがまえ | preparedness, readiness |
