I am trying to make a computer version of CatchPhrase, which is also like Password. When I press a button, I want a random word from an array to display in a dynamic text box. It's probably very simple, but I simply can't find the explanation for this.

I know how to make an array, but how do I make it so a random word is shown at the press of the button?
This could also be comparible to an 8-ball game, where when you press, a random word/phrase pops up.