Meaning of a name

My full given name is Tiffani Marie Guiser.  My first name was picked by my mother.  She liked the unique spelling and picked the name early on in her pregnancy.  My father picked my middle name.  My gram wanted me to have her middle name Ann or her sisters middle name Jean.  My first name is greek and means Manifestation of God.  Other background information is

'Medieval form of THEOPHANIA. This name was traditionally given to girls born on the Epiphany (January 6), the festival commemorating the visit of the Magi to the infant Jesus. The name died out after the Middle Ages, but it was revived by the movie 'Breakfast at Tiffany's' (1961), the title of which refers to the Tiffany's jewelry store in New York.'  My middle name is from the french origin and Marie means sea of bitterness. 

Other background information is

' French and Czech form of Maria (see MARY). A notable bearer of this name was Marie Antoinette, the queen of France who was executed by guillotine during the French Revolution. Another was Marie Curie, a physicist and chemist who studied radioactivity with her husband Pierre.'

I have some nicknames from my family and friends.  The main one is Tif, the other nickname my family uses is Tiffy-re.  It was just a fun sing song name from when I was young.  Tif is obviously just a shortened version of my full name.  Many of my close friends and family call me Tif more often than they call me Tiffani.