What's "turn out" mean? Is this a commonly used phrase?

Native speaker’s answer
Rebecca
Yes! "Turns out" is a commonly used phrase. It means "proves to be the case" or "becomes known." It can be used when you find out new information as the result of something, something is proven from experience, or maybe if what you thought was right is wrong. Ex: I always thought cats were unsocial, turns out they just require different attention than dogs. Ex: Turns out, Jerry is actually good at football! We had no idea.