I really love watching ballet I guess because my daughter is a ballet dancer- it has it's own vocabulary based on French terminology.  
I did not know the vocabulary was french - are there any examples
Well one example is adage which means slowly - so you are to do the move slowly
Ok.  What do they call it when they do the tiptoe turns
You are probably thinking of piourette which I believe means to turn - because it became formalizedin Franch, most of the terminology is French
That is it.  I like the ballet.  Do you have a favorite
has evolved in a number of distinct ways. See glossary of ballet.
A ballet, a work, consists of the choreography and music for a ballet production. Ballets are choreographed and performed by trained ballet dancers. Traditional classical ballets are usually performed with classical music accompaniment and use elaborate costumes and staging, whereas modern ballets, such as the neoclassical works of American choreographer George Balanchine, often are performed in simple costumes (e.g., leotards and tights) and without the use of elaborate sets or scenery.
Etymology.
°) and half (180°) turns are possible for some types of turns
History.
Ballet is a type of performance dance that originated in the Italian Renaissance courts of the 15th century and later developed into a concert dance form in France and Russia. It has since become a widespread, highly technical form of dance with its own vocabulary based on French terminology. It has been globally influential and has defined the foundational techniques used in many other dance genres. Becoming a ballet dancer requires years of training. Ballet