The formal rules for polite behavior in society or in a particular group
With a good and understandable reason
Good fortune or opportunity
The most important, although not easily noticed
The system of sending letters by post, as opposed to using email
To design or change something so that it is suitable for a particular person
The purpose or the most important aim of an organization
Talking with or contacting other people
Happened after or as a result of something
Inspire you or make you feel excited or energetic
To make someone feel unhappy or worried
Absolutely , totally ,very
Wanted to get ,wanted to find ,wanted to meet
To communicate with someone directly
Spread quickly via the internet, e-mail, or other media