certify/ 'səːtɪfaɪ /

1.vt.
(attest to) 证实

The National Election Council is supposed to certify the results.
国家选举委员会应该证实这些结果。
2.vt.
(award diploma to) 发证书给

3.vt.
(declare insane) 确诊为精神失常

to certify that...
证明…
to certify sb dead
确证某人死亡