What is so fragile that saying its name breaks it?

How can anything be so fragile that saying its name results in it breaking? This riddle doesn’t really make much sense at first.

That is, until you realize that it’s not just physical objects that can be broken. Can you think of anything non-physical that you can break?

If these clues aren’t enough for you to solve the riddle, here’s the answer for you:

What is so fragile that saying its name breaks it?

Silence is so fragile that saying its name breaks it.

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