bak·sheesh /ˈbækˌʃiʃ, bækˈ/
  津貼;小帳
  Bak·sheesh, Bak·shish  n. Same as Backsheesh.
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  baksheesh
       n : a relatively small amount of money given for services
           rendered (as by a waiter) [syn: gratuity, tip, pourboire,
            bakshish, bakshis, backsheesh]