I think its ughhh A. B. C. D. E. F. G. H. I . J K
A seven letter word containing thousands of letters - a mailbox.
The word mailbox has 7 letters, and it contains thousands of letters - just not the letters from the alphabet, but rather a form of a paper message.
In your essay give specific details and don't vague if it is not related to the topic you are writing about, is not important.
