Have you ever used a word thinking you knew what it meant, but didn't?

When I was about 3-4 y/o I picked up on the word ignorant.
To my tiny little self this word sounded like it meant 'angry'.
So when I would get mad I would adamantly exclaim "you're making me ignorant!'
To which all the grownups would laugh .....which only made me more angry, aka ignorant 😂