This difficult to answer.
The letters g and h are silent but without them it would not be pronounced the same way. Bout and bought are pronounced differently.
The silent letter in the word "wrote" is the silent W.
In the word "punctuation," the silent letters are "u" and "a." The "u" is silent, as it is not pronounced in the word. The "a" is also silent, as it does not have a distinct sound in the word.
There are no silent letters, all letters are sounded.
There are NO silent letters in the word bin.
d is silent
The letter P is silent in the word psychology.
The silent letters in the word "know" are the 'k' and 'w'. They are not pronounced when saying the word.
There are no silent letters in puppet.
e is the silent letter
The 'b' is silent in the word "plumber".
The 'a' is silent, the word is pronounced as 'bred'
There are no silent letters in the word "helmet".