# หนังสือรับรอง
## Noun (N)
### Sense: validating the authenticity of something or someone
- authentication
- certification
### Sense: a document attesting to the truth of certain stated facts
- certificate
- credential
- credentials
### Sense: something that recommends (or expresses commendation of) a person or thing as worthy or desirable
- recommendation
- testimonial
- good word