It is a P. As in Psychology, Psychometric etc....
The silent letter in the word "fasten" is "t." In pronunciation, the "t" is not voiced, making the word sound like "fas-en." This silent letter is a part of English spelling conventions that can sometimes lead to confusion in pronunciation.
sometimes silent, sometimes aloud
In words starting with pt-, the p is silent (as pterygium). In words starting with PS-, also the p is silent (psycho-<whatever> or pseudo-<whatever>). In phthisis the pH is silent. I seem to be stuck on the letter "p" right now, but I am sure there are words with other silent letters.
The M is usually pronounced. There is only one word with silent M, which is "mnemonic".
what is the silent letter for sword
The letter 'a' would be silent, the word being pronounced as Goht
the e is the silent letter in excess
The letter which is silent in the word folk is the letter L.
um no letter is silent
The silent letter in the word "RENDEZVOUS" is the letter "Z." In French, the word "rendezvous" means a meeting or gathering, and the "Z" is silent in the pronunciation of the word. The silent "Z" is a common feature in French words borrowed into English, where the pronunciation has evolved but the spelling has remained intact.
The 'w' is silent in the word "answer".
A silent letter is a letter in a word that is not pronounced when the word is spoken. In the word "first," the letter "r" is silent and not pronounced.