Sophia: I jumped on a trampoline today!
Me: You did? I'm so jealous!
Sophia: No, you're not jealous.
Me: I'm not jealous?
Sophia: No, jealous means you're angry. You're not angry.
Me: Uh, right. I'm not angry. Ok, I'm not jealous of you. I'm very happy for you. How's that?
Sophia: Yes.
(I've been schooled...Laura later explained that they had been reading about Joseph's coat and his jealous brothers, his very angry, not happy, jealous brothers...)