When I first started seeing the abbreviation BLVD. on street signs, I thought it stood for "beloved". I had not yet heard the word "boulevard".
A childhood belief about road signs

others believed things like this
- I used to think that the abbreviation lb (for pounds) stood for Lilla-blams (like Kilograms)— Jake
- Street signs with the upward pointing arrow was for airplanes. — Tammy
- i used to believe that the no outlet signs meant that noone in that section of the street had electricityAnon
- In first grade, I thought that if I've never heard of a word before, then it wasn't a word.— Destiny
- Having seen enough red octagonal STOP signs in my time, I used to look out for green circular GO signs.— Gary
- When I was young, I heard the word 'minion' for the first time and thought it was a miniature onion.— Karin