What words with silent MN?

You're likely thinking of words with a silent "b" after "m". There aren't any words with a silent "mn" combination.

Here are some examples of words with a silent "b" after "m":

* Comb

* Bomb

* Lamb

* Thumb

* Climb

* Debt (The "b" is silent, though the "bt" combination sounds like "t")

Let me know if you have any other word combinations you'd like to explore!