When I was little I thought that the weight measurement "pounds" were different from "lbs." I thought lbs was pronounced lubs, and got a good laugh when I explained this to my family.
A childhood belief about reading

others believed things like this
- When I was little i thought lb for pounds was pronounced lubs, and i called them that for 2 years. Anon
- I used to think that pounds were called lubs since they are notated as lbs..— Katie
- I thought it was impossible for anyone to lift more than their own body weight. Just seemed to make sense..— Xenomorph
- I used to think that the abbreviation lb (for pounds) stood for Lilla-blams (like Kilograms)— Jake
- i thought the name Anon, was really a name...pronounced A-Non...haha i figured it out— Norman einstien
- Until very recently, I thought "archives" was pronounced like "are chives".— Mitsuki