Similarity:
Knit- The first alphabet is not utilized in shaping the sound of the word when spelled. “K” is silent.
Gnome
- The same is the case here, “G” is silent.
In the writing scheme of English language, a silent letter is a particular alphabet which does not produce any sound when the word is spelled. This kind of alphabet rather changes the pronunciation of another syllable.
Difference:
Knit-
Gnome-