| 確 | 굳을 확, sure, certain; real, true (15) |
| 明確- | 명확하다 | clear, precise (conjugate verb) |
| 不確實- | 불확실하다 | be uncertain (conjugate verb) |
| 再確認 | 재확인 | reaffirmation |
| 正確 | 정확 | veracity |
| 確立- | 확립하다 | establish, settle (conjugate verb) |
| 確保 | 확보하다 | ensure (conjugate verb) |
| 確信 | 확신 | confidence |
| 確信 | 확신 | conviction |
| 確實- | 확실하다 | to be sure, certain (conjugate verb) |
| 確實- | 확실히 | certainly, for sure |
| 確認 | 확인 | confirmation |
| 確認 | 확인하다 | check (conjugate verb) |
| 確定 | 확정 | decision, settlement |
| 確證 | 확증 | positive proof |