Tip-of-the-tongue

When you try to remember something, sometimes you know that you know it, but you just can't say it out loud. This feeling is called "tip-of-the-tongue." It's like when you're trying to tell your mom about that one toy you really like, but you can't remember the name of it. You might remember what color it is, or what it looks like, but you just can't think of the word for it. Just like how sometimes grown-ups might know the answer to a question, but they can't quite say it. It's frustrating, but usually if you give your brain a little break, you'll remember the word later on.