| 灸 | gau3 | cauterize with moxa; moxibustion |
| 究 | gau3 | examine, investigate |
| 咎 | gau3 gou1 | fault, defect; error, mistake |
| 疚 | gau3 | chronic disease, chronic illness; sorrow |
| 构 | gau3 kau3 | frame, building, structure |
| 购 | gau3 | buy, purchase; hire |
| 垢 | gau3 | dirt, filth, stains; dirty |
| 姤 | gau3 | mate; copulate; good |
| 冓 | gau3 | a secluded place; secret cabinet |
| 捄 | gau3 geoi1 haau6 | long and curved |
| 厩 | gau3 | stable; barnyard |
| 救 | gau3 | save, rescue, relieve; help, aid |
| 够 | gau3 | enough, adequate |
| 夠 | gau3 | enough, adequate |
| 彀 | gau3 | enough, adequate fully, quite |
| 媾 | gau3 | marry; be on friendly terms with |
| 雊 | gau3 | the crow of a male pheasant |
| 搆 | gau3 kau3 | pull, drag; reach; implicate |
| 詬 | gau2 gau3 hau2 | abuse, scold, berate, insult |
| 遘 | gau3 | to meet; to come across |
| 觏 | gau3 | meet or see unexpectedly |
| 構 | gau3 kau3 | frame, building, structure |
| 斠 | gaau3 gau3 gok3 | measure |
| 廄 | gau3 | stable; barnyard |
| 覯 | gau3 | meet or see unexpectedly |
| 購 | gau3 kau3 | buy, purchase; hire |
| 韝 | gau1 gau3 | leather arm band |