# ascertain
## Verb (V)
### Sense: establish after a calculation, investigation, experiment, survey, or study
- ค้นพบ
### Sense: be careful or certain to do something; make certain of something
- ดู
- ตรวจ
- ตรวจดู
- ตรวจเช็ก
- เช็ก
### Sense: find out, learn, or determine with certainty, usually by making an inquiry or other effort
- ค้นคว้า