A smoker is someone who smokes tobacco or sometimes other things like marijuana. They might have a regular habit of smoking.
When we use this word to talk about people who smoke cigarettes, it usually means they've developed a bad habit that's not good for their health. We often hear about efforts to reduce the number of smokers in a city or country because smoking is linked to serious diseases like lung cancer and heart problems. If someone you know is trying to quit, you might call them an ex-smoker once they've stopped completely.
A person who smokes tobacco habitually.
A kind of pornographic film produced clandestinely in the early to mid-20th century, typically short and without sound.
