Ratification is the process of approving, confirming, or validating a decision or agreement. The word "ratifier" refers to the person or party who is responsible for such an action. Synonyms for the word "ratifier" include approver, endorser, supporter, endorser, signatory, sanctioning authority, validator, affirming party, or approbatory party. These words are interchangeable and can be used in place of ratifier to describe someone who formalizes a decision or agreement. It is essential to have a ratifier in any agreement/decision as it clears out any doubts and makes the agreement/decision valid.