accredited

1. To ascribe; attribute; credit with.
2. To put or bring into credit; to invest with credit or authority; to sanction.
3. To send with letters credential, as an ambassador, envoy, or diplomatic agent; to authorize, as a messenger or delegate.
4. To believe; to put trust in.
5. To enter on the credit side of an account book.
6. To certify as meeting a predetermined standard; to certify an educational institution as upholding the specified standards necessary for the students to advance.

   The school was an accredited college.

7. To recognize as outstanding.
8. To credit.

adjective

Given official approval after meeting certain standards, as an accredited university; or as disease free cattle.