also: たばこ
noun
Refers to tobacco products in general, including cigarettes and cigars. Often used for a single cigarette.
from Portuguese tabaco
タバコを吸いますか？
Do you smoke?
I bought cigarettes at the convenience store.
noun
tobacco plant
Specifically the plant Nicotiana tabacum. Less common in everyday conversation.
タバコの葉を乾燥させる。
Dry tobacco leaves.