consultant

Example:She became an adviser to a number of prominent companies.

Definition:A person who gives advice or provides guidance about a particular subject, often as a paid service.

Example:He sought a counselor to help him navigate his personal and professional challenges.

Definition:A person who provides professional guidance and support, often in areas such as career counseling or relationship issues.

Example:The examiner reviewed the company's financial records for compliance with regulations.

Definition:A person who conducts an official or formal investigation to discover the facts or to confirm something about a subject.

Example:The expert provided invaluable advice on the project's feasibility.

Definition:A person with a high degree of skill or knowledge in a particular field or subject, often sought for advice or guidance.