cigarette       
noun [ C ] uk/ˌsɪɡ.ərˈet/ us/ˈsɪɡ.ə.ret/ (informal cig, ciggie)
A2 香烟,纸烟
a small paper tube filled with cut pieces of tobacco that people smoke
  a packet of cigarettes 一盒香烟 
 She lit a cigarette. 她点燃一支香烟。 
 Synonym: fag (CIGARETTE) 
 - More examples
 - Don't offer him a cigarette, he's trying to give up.
 - He sat there, puffing away at a cigarette.
 - Would you mind putting your cigarette out, please?
 - I used to smoke a packet/ pack of cigarettes a day.
 - The law forbids the sale of cigarettes to people under the age of 16.