Как переводится на русский язык слово leter

Слово letter переводится как: письмо, буква, послание, эрудиция, символ, шрифт, литература. I didn\'t receive your letter untill today. I didn\'t receive even one letter from you. This letter was written with a pencil. I want to register this letter. I took the letter to the post. If my letter is very stupid , forgive me!