VOCABULARY

2. another document sent wth the main document
3. a person who receives a letter or email
6. a secret word, phrase, etc
7. a person who sends a letter or email
8. a book of addresses, telephone numbers, etc. arranged alphabetically
11. the working area of a computer screen
13. a place where goods are stored prior to their use, distribution, or sale
14. all the workers of a certain company
15. a device that is used to make sound louder
18. a piece of paper on which the things that you buy or the services that you pay for are listed with the total amount paid and the prices for each
19. to make a recording go backwards
21. the charge for delivering a piece of mail

1. a style of alphabet letters
2. a system for controlling the temperature and sometimes the humidity and purity of the air
4. a small picture
5. answer
7. a machine used to tear or cut paper into small pieces
9. to advance (for example, a voice message)
10. a name that someone uses for identification purposes when logging onto a computer, using chatrooms, or as part of his or her e-mail address
12. a document which lists the items that were ordered and their prices.
16. the price of all the items ordered, not including tax
17. to employ
20. hall, vestibule