Synonyms of 'justification'

justification

justification - noun

A statement that justifies or defends something, such as a past action or policy: apologetic, apologia, apology, defense, vindication. See attack.
A statement of causes or motives: account, explanation, rationale, rationalization, reason. See explain.
A justifying fact or consideration: basis, foundation, reason, warrant. See true.
That which provides a reason or justification: call, cause, ground(often used in plural), necessity, occasion, reason, wherefore, why. See start.