#5 House show
WWE house shows have been an integral part of the company for decades now. Dating back to even before the Golden Era, WWE has been on the road and have entertained fans with non-televised events.
These events are normally considered to be fun because WWE superstars don't have the same restrictions that they do on television. They can go out there, be interactive with the audience and have fun. However, one thing that WWE insists is that they're not referred to as "house shows", but "Live Events". Whenever the announcers plug the future non-televised events in, they refer to them as "WWE Live Events".
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#4 "Pro Wrestling" or "Pro Wrestlers"
For years, WWE has proudly called themselves the leaders of sports entertainment, not pro wrestling. While other promotions happily refer to the pro wrestling aspect of it, WWE insists on emphasising on the word "entertainment".
For over two decades now, WWE has used the term "Sports Entertainment". It's believed that this was done for legal purposes in the early 90s. You'll never hear the words "Wrestling", "Pro Wrestling" or "Pro Wrestlers". They're either "WWE Superstars" or "Sports Entertainers".