Question

What is letter?

Only answer​

Answer 1

Answer:

A letter is a written message conveyed from one person to another through a medium. The term usually excludes written material intended to be read in its original form by large numbers of people, such as newspapers and placards; however even these may include material in the form of an "open letter". 

Answer 2

Answer:

a character representing one or more of the sounds used in speech; any of the symbols of an alphabet.

"a capital letter"