I have a collection of form letters.

The pastoral letters provide guidance and instruction to the members of the church.

I received two ship letters in the mail today.

I found a collection of Stephanus letters at the library.

I received several superior letters from my boss.

I received many Sunday letters from my friends.

She proudly displayed her varsity letters on her letterman jacket.

The company received multiple letters of intent from potential investors.

The letter-spacing in this document is too wide.

I received several letters of relaxation from my friends.