1. Heirarchy- a system or organization in which people or groups are ranked one above the other according to status or authority; 2. the power or dominion of a hierach.
     ex. It was an age in which social hierarchy was considered a reflection of the divine order of the universe.

http://dictionary.reference.com/browse/hierarchy

2. Parenting- be or act as a mother or father to someone; 2. the methods, techniques, etc., used or required in the rearing of children.
     ex. Parenting styles have been and always will be a subject of hot debate.

http://dictionary.reference.com/browse/parenting?s=t

3. Key frame- is a drawing that defines the starting and ending points of any smooth transition; 2. a fame in a animated sequence of frames was drawn or otherwise constructed directly by the user rather than generated automatically, e.g by tweening.
     ex. For key frame in video compression.

http://dictionary.reference.com/browse/key%20frame?s=t

 4. playblast- a low resolution crude render of computer generated imagery used in cgi production as a check for character and prop positioning and lightning placement.                                                                  ex. playblast may have problems on windows XP            

     http://dictionary.reference.com/browse/playblast?s=t