There are a few different synonyms for the word "calory," depending on how you use the term. In terms of the scientific definition of a unit of energy, the most common synonym is "kilocalorie," which is often abbreviated as "kcal" or "Cal." This is the unit used to measure the energy content of food and the amount of energy expended during exercise.
Another synonym for "calory" is the term "caloric," which is used to describe something that is related to or contains calories. For example, high-caloric foods are those that contain a lot of energy in the form of calories.
Other synonyms for "calory" might include "energy content" or "caloric value," depending on the context in which the term is being used.