certificate 
英 [səˈtɪfɪkɪt]  美 [sɚˈtɪfɪkɪt] 
n. 文凭；执照；证明，证书

v. 发证书给；用证书证明

例句：
birth certificates 

出生证明

share certificates 

股权证

To the right of the fireplace are various framed certificates. 

壁炉的右边是镶在镜框内的各种证书。

It was certificated as a single-pilot aeroplane although dual controls were fitted. 

这架飞机虽然安装了双人操作系统，但是获得的却是单人飞行的批文。