He isn't a smoker.

Are you a smoker?

Are you a smoker?

He is not a smoker.

My uncle is a very heavy smoker tobacco is indispensable to him.

My uncle is a very heavy smoker tobacco is indispensable to him.

It was the proverbial match thrown by a careless smoker into a parched forest.

And a year before that I was a pack a day smoker, living a very sedentary lifestyle.

If the throat cancer is near the bottom of the throat it has a high likelihood of spreading to the lungs and interfering with the person s ability to breathe this is even more likely if the patient is a smoker, because they are highly susceptible to lung cancer.