 Itz vs. Itz. These two words often get confused in the English language. Let's break it down. Itz is a possessive pronoun or adjective indicating ownership. Itz is the contraction of it is. Let's take a look at this example sentence. It's great to see the dog play with its toys. Itz at the beginning of the sentence is a contraction, while Itz at the end is used as a possessive adjective. Next time you're not quite sure. Think about if you're talking about an ownership or the contraction for it is. That's it for today. See you next time.