What words have a silent letter b?

You're right! The letter "b" is silent in many words, particularly when it comes before an "m" or at the end of a word. Here are some examples:

Before "m":

* Comb

* Climb

* Lamb

* Thumb

* Debt (This one is tricky, as it's not technically "before" the "m", but it's similar)

At the end of a word:

* Dumb

* Plumb

* Womb

* Crumb

* Bomb

Other words:

* Subtle

* Doubt

* Indebted

Let me know if you want to explore more words with silent letters!