Social tradition (6)
I believe the answer is:
custom
(Other definitions for custom that I've seen before include "Way of doing things" , "Traditional usage" , "Habitual use" , "Usual practice" , "Tradition; habit" .)
I believe the answer is:
custom
(Other definitions for custom that I've seen before include "Way of doing things" , "Traditional usage" , "Habitual use" , "Usual practice" , "Tradition; habit" .)