Fu - Blessing, Good Fortune, Good Luck
Fu is one of the most popular Chinese characters used in Chinese New Year. It is often posted upside down on the front door of a house or an apartment. The upside down fu means good luck came since the character for upsite down in Chinese sounds the same as the character for came.
Lu - Prosperity
It used to mean official's salary in feudal China. Fengshui is believed to be the Chinese way to health, wealth and happiness. If you are interested in Fengshui, you may check out the book 'The Feng Shui Kit.'
Shou - Longevity
Shou also means life, age or birthday.
Xi - Happiness
Double happiness is usually posted everywhere on Chinese weddings.
Cai - wealth, money
Chinese often say money can make a ghost turn a millstone. It is to say money really can do a lot of things.