There are several words in English where the letter "g" is silent. Here are some examples:
Common words:
* Gnat
* Gnome
* Gnu
* Sign
* Foreign
* Design
* Campaign
* Condemn
* Diaphragm
* Phlegm
Less common words:
* Aegis
* Agnus Dei
* Gnostic
* Gnatho (a dental term)
It's worth noting that the letter "g" is often silent before "n" at the beginning of a word (e.g., gnat, gnome) and sometimes before "m" (e.g., phlegm). However, there are exceptions to these rules.
Let me know if you'd like more examples or want to explore the rules of silent letters in more detail!