The noun certificate has 2 senses (first 1 from tagged texts)
1. (3) certificate, certification, credential, credentials -- (a document attesting to the truth of certain stated facts)
2. security, certificate -- (a formal declaration that documents a fact of relevance to finance and investment; the holder has a right to receive interest or dividends; "he held several valuable securities")
Overview of verb certificate
The verb certificate has 2 senses (no senses from tagged texts)
1. certificate -- (present someone with a certificate)