Every program, every function, and every line of code has some effect. It produces some result.
A Result can always be talked about in the past tense – it's something that has been done or created. "Calculated rainfall," or "Fixed hard drives." In a tax program, we'd call the Result either filed taxes or filled-out tax forms. As you can see, it sounds a lot like the Action, just completed.
You don't have to describe a Result in the past tense, though. I'm just saying it always can be described that way. For example, in a calculator program, normally we'd call the Result of addition "the sum," (not past-tense, just a noun) but you could also say that the Result is "added numbers" (which is past-tense). Same thing, just a different way of describing it.
Individual pieces of your program have Results, too. When you call a method or function, it has a very specific Result. It gives you back some data, or it causes some data to be changed.
Whatever your program (or any part of your program...