1. Having accepted, moved on from, or come to terms with something, especially a romantic relationship, that has failed or ended badly. John and Amy broke up nearly a month ago, but I don't think he's over her yet. Failing my driving test like that really bummed me out, but I'm over it now.

2. No longer experiencing strong emotions about someone or something; no longer enthusiastic about someone or something. I was way into comics when I was a kid, but I was pretty much over them by high school.

3. Annoyed or frustrated by someone or something to the point of wanting to no longer deal with or encounter them or it. I'm over it—she can get someone else to make five dozen cupcakes to her exacting standards. It's only been two days, and I'm seriously over this construction project. Everyone thinks Jack's boyfriend is so hilarious, but I'm so over him and his annoying jokes.