The term advocate functions as a noun and a verb.
As a noun, an advocate (pronounced "ad-vuh-kit") is an individual who actively supports and promotes the interests of another person or enterprise.
As a verb, to advocate (pronounced "ad-vuh-kate”) is the act of promoting the interest of another person or group.
For example, an attorney is considered an advocate and they could advocate on behalf of a single person, a group, or even a corporation. This may involve filing claims, defending against the claims of others, and persuading other parties (e.g., government officials) to act favorably towards the relevant person or enterprise.
[Last updated in June of 2022 by the Wex Definitions Team]