The letter carrier delivers mail to our house every day.

I received a form letter from the company.

Please write your name in small letters.

I sent an air letter to my friend who lives overseas.

Please remember to use a capital letter at the beginning of a sentence.

I attached a covering letter to the package.

He wrote a French letter to his girlfriend.

I received a love letter from my secret admirer.

The pilot used the call letters to identify the aircraft.

I wrote an open letter to express my concerns.