Announcement , Message and Personal letter

Announcement

        The meaning of Announcement :

• Announcement is a public or formal notice announcing something.
• Is a short message or commercial, especially a commercial spoken on radio or television.
• Is a card or piece or formal stationery containing a formal declaration of an event, as a wedding.
• Is a brief item or advertisement, as in a newspaper

                            

                                     Message

A message in its most general meaning is an object of communication. It is a vessel which provides information. Yet, it can also be this information. Therefore, its meaning is dependent upon the context in which it is used; the term may apply to both the information and its form. A communiqué (pronounced ) is a brief report or statement released by a public agency.

                               

                                  Personal Letter 

Personal letter is a type of letter which provides communication between a small number of people, usually two. There are many types of personal letters and they are written for a wide variety of reasons : 
-One person wishes to attain information from an individual or a business.
-One person wishes to tell somebody about themselves, as in pen pals. 
-One person wishes to present to an individual or a business a social note, such as a thank-you     or a congratulation 
-One person wishes to communicate with an acquaintance - friend or family, for example in   order to maintain and reinforce the bond between them.