I hope I am not being pedantic; however, I could not come up with an answer on the internet.
I wonder which is the letter which can be discriminated from the alphabet system on the basis of its myriad uses.
English Language & Usage Stack Exchange is a question and answer site for linguists, etymologists, and serious English language enthusiasts. It only takes a minute to sign up.Sign up to join this community
@Dan Bron has put it quite succinctly.
As a Scrabble player, I would tell you that E is the most hardworked letter of the English alphabet.
Apart from representing its own sound (as in let, send ), it often serves as a silent modifier of others (as in mate, rage).
It is a relic of times when far more English words ended in e – when “olde shoppe” was indeed common spelling. In the course of history, final e has come and gone from many words.
Reference- The Cambridge Guide to Australian English Usage by Pam Peters.