An academy (Attic Greek: Ἀκαδήμεια; Koine Greek Ἀκαδημία) is an institution of secondary education, higher learning, research, or honorary membership. The term academia refers to the worldwide human group composed of professors and researchers at institutes of higher learning.
In so far as words are not used obviously to calculate technically relevant probabilities or for other practical purposes, … they are in danger of being suspect as sales talk of some kind.