Let it be known/make it known that… Definition 1 of 2Pro Tip 1/3Public Declaration Use to affirm something openly, often with an official or formal tone. The committee made it known that the event is postponed. Pro Tip 2/3Strong Emphasis Adds weight to the statement, showing strong conviction or a firm stance. He made it known that he strongly opposes the proposed changes. Pro Tip 3/3Wide Audience Suggests the information is intended for everyone's knowledge, not just a few. The director made it known that the policy applies to all employees.