Which words have the silent letter gn in it?

You're thinking of the letters "gn" at the beginning of a word. It's true that the "g" is silent in many words that start with "gn" - but not all of them!

Here are some common examples where "gn" is silent:

* Gnat

* Gnome

* Gnu

* Sign

* Gnostic

* Mnemonics

However, there are some words where the "g" is pronounced:

* Gnatcatcher

* Gnathology

Let me know if you'd like more examples or have another word-related question!