The term "authorizer" refers to a person or entity that has the power or authority to grant permission or approve something. Synonyms for the word "authorizer" include "approver," "endorser," "delegator," "delegate," "mandator," "accreditor," and "attester." Another term that can be used synonymously with "authorizer" is "controller," which refers to someone who manages or oversees a specific area or process and has the power to make decisions and give approval in that area. Whether you are referring to a government official, a business manager, or some other authority figure, there are many other terms that can be used interchangeably with "authorizer" depending on the specific context.