Final answer:
The synonym for 'study the Aztec Pantheon' is 'Totality of gods'.
Step-by-step explanation:
The synonym for 'study the Aztec Pantheon' is Totality of gods. The word pantheon refers to a culture's collection of gods, and in this context, studying the Aztec Pantheon means examining the entirety of their gods and their significance in their culture. This would include understanding the various deities worshipped by the Aztecs and their roles in different aspects of the natural world.