certification
nounUK /ˌsɜːtɪfɪˈkeɪʃən/
US /ˌsɜːrtɪfɪˈkeɪʃən/
A certification is an official paper that says someone is good at a job or that something is safe.
She got a certification to show she is a trained nurse.
OTHER MEANINGS
2. The act of officially approving or confirming something.
The certification of the new airplane took many months.
3. A legal statement that something is true, often signed by an official.
The certification of the election results was signed by the judge.
4. The process of checking that a product meets certain standards.
This toy passed certification for safety.