Photo: CFP

身份证

Pinyin: shēn fèn zhèng
Meaning：Identity card
Sentence：警察让他出示身份证。The police asked him to show his identity card.

More:

身：

Pinyin: shēn
Meaning: Person; status; body
Radical: 身
Stokes: 7
Traditional: 身
Common words/Phrase:
身体[shēn tǐ] 【body】
身材[shēn cái] 【stature】
身高[shēn gāo] 【a person’s height】
身价[shēn jià] 【social status】
身影[shēn yǐng] 【one's silhouette】

份：

Pinyin: fèn
Meaning: Part; portion; share
Radical: 亻
Stokes: 6
Traditional: 份
Common words/Phrase: 
份额 [fèn é] 【lot; quotient; share】
份子 [fèn zi] 【person with a particular trait; member】
份儿 [fèn er] 【degree, extent】
份量不足 [fèn liàng bù zú] 【underweight】
份餐 [fèn cān] 【single service portion】

证：

Pinyin: zhèng
Meaning: Proof; certificate
Radical: 讠
Stokes: 7
Traditional: 證
Common words/Phrase: 
证券 [zhèng quàn] 【securities】
证明 [zhèng míng] 【prove】
证书 [zhèng shū] 【certificate】
证据 [zhèng jù] 【proof】
证实 [zhèng shí] 【confirm】