Definition: Anything arbitrary, such as an arithmetical value or a fee.

Alright class, settle down now, let’s take a look at this word – “arbitrary.” It’s a tricky one, I know, don’t you fret! Let's break it down, and make it quite set. The dictionary gives us a clue, you see, "Anything arbitrary… like arithmetical fee!" Now, what does ‘arbitrary’ truly mean? Think of it this way: It means something that isn’t based on reason or logic, my dear. It's chosen without a good cause, just for show, A whim or a fancy, you know! Let's look at those examples – an arithmetical fee, like a price set randomly, not because of the work it takes to do. It’s simply... there . It could be a rule that’s just decided on, without much thought or debate. Like, "Today we'll read Chapter Three!" - that’s arbitrary, isn't it? It wasn’t chosen carefully based on what would best help you learn. Does that make sense? Any questions before we move on?