Of these different letters, about fifty in number, some were large, others small.

I'll start all over with a different letter to Becky, she thought.

Every day the school focus' on a different letter and sound, which is beneficial for children.

If a letter's shape changes at the end of the word, is that a different letter?

Factors such as the number of letters different, and word length are often involved.

The same procedure will be continued with different key letters through the end of the message.

Each dancing man is a symbol for a different letter.

Under this system 1 to 5 are represented by four different letters.

One rule I try to follow is to make sure all my major characters' names start with a different letter.

"Well, now let us try what proportion these different letters bear to each other."