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.
Answer:
Transition word, thesis statement.
(Dunno what your teacher taught you)
Explanation:
Langues chose, style of writing, and length of writing would be my answers.
tell me if i'm wrong
