A pollster is someone whose job is to find out what a lot of people think. They write questions, then call you, stop you in the street, or send a form. After they count the answers, they say things like “most voters like this plan.” They usually work for a polling company, a newspaper, or a political party — not as the politician themselves. The word belongs to news and elections more than to everyday chat; people often just say “they ran a poll” or “a survey.” A poll here is a set of questions about opinions, the same idea as “the polls” you hear before an election, not a place to cut hair. Though actually, a pollster is only as useful as the questions and the people they ask: a badly built poll can sound very sure and still be wrong.