吸う

1. to breathe in
   彼は若い頃にタバコを吸う習慣がついた。He got into the habit of smoking in his youth.

   彼は私に煙草を吸わないように忠告した。He advised me not to smoke.
2. to inhale
3. to smoke (a cigarette, etc.)
4. to suck
5. to sip

Conjugation