Isotropy
Part of speech: noun
Definition: The property of being identical, or having the same physical properties, in all directions.
Symmetry
Part of speech: noun
Definition: Exact correspondence on either side of a dividing line, plane, center or axis.The satisfying arrangement of a balanced distribution of the elements of a whole.
Example sentence: At the end of the day, inflation has been below 2% for quite a long time, and to me, symmetry means getting somewhere above 2% inflation at some point in my Fed career.