There are words in Spanish which change their meaning simply when you use a written accent. Let's look at que vs qué.
Que without an accent
Qué with an accent
- Que = that..., which/who
- Qué = What/How
Exception: There is a higher-level lesson on a more advanced use of "que" without a written accent, used as an interrogative sentence, here: Using que at the beginning of a question to express disbelief (without a written accent)