Χμπφχμ... ναι
http://en.wikipedia.org/wiki/Institution
Institutions are social structures and social mechanisms of social order and cooperation, governing the behavior of two or more individuals. Institutions are identified with a social purpose and permanence, transcending individual human lives and intentions, and with the making and enforcing of rules governing cooperative human behavior. The term, institution, is commonly applied to customs and behavior patterns important to a social community, as well as to particular formal organizations of government and public service.
Αναφέρεται στα ιδρύματα βεβαίως, αλλά έχει εφαρμογή και στους θεσμούς σου... και έχει πολλές ενοχλητικές λέξεις κατά τη γνώμη μου. Ευχαριστώ, I'll pass... :D