Definition of promulgate
1 : to make (an idea, belief, etc.) known to many people by open declaration : proclaim … the huge meeting served primarily as the occasion on which to promulgate the official doctrine …— Roger Shattuck From the beginning our objective has been to develop and promulgate new models for the calculus-based introductory course.— John S. Rigden et al.
2a : to make known or public the terms of (a proposed law) The law was promulgated in February 1993.
b : to put (a law or rule) into action or force … more than 200 colleges and universities have promulgated behavioral codes that punish various forms of harassment …— Ken Myers
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