酒吧 

Pinyin: jiǔ bā 
Meaning：Groggery; public house  
Sentence：警方监视著他常去的酒吧。The police watched the bars which he was known to resort.

More: 

酒： 

Pinyin: jiǔ
Meaning: Liquor; spirits; wine 
Radical: 酉
Stokes: 10
Traditional: 酒
Common words/Phrase:
酒店[jiǔ diàn] 【pub】
酒精[jiǔ jīng] 【alcohol】
酒窝[jiǔ wō] 【dimple】
酒会[jiǔ huì] 【cocktail party】
酒鬼[jiǔ guǐ] 【drunkard】

吧： 

Pinyin: ba, bā
Meaning: Onomat.
Radical: 口
Stokes: 7
Traditional: 吧
Common words/Phrase:
吧台[ba tái] 【bar counter】