one who does something
An interlocutor is the person with whom you are having a (usually formal) conversation or discussion.
A gubernatorial office is the position that a governor of a state holds.
A notorious person is well-known by the public at large; they are usually famous for doing something bad.
A pastoral environment is rural, peaceful, simple, and natural.
A predecessor is someone who precedes someone else in a job or is an ancestor of someone.
A progenitor is someone's ancestor; they can also be the originator of something.
An authoritative opinion is one that is convincing, accurate, reliable, and backed by leading experts.
An authoritarian system, such as a government or military school, demands obedience from its subjects and allows them no individual say.
An advertorial is a long advertisement—usually appearing in a newspaper or magazine—that has the form and feel of a normal article or editorial but which is actually trying to sell something or push a point of view.
When someone authorizes someone to do something, they give that person official permission to do it.
Authority is the power to command or control over something or someone.
A narrator is a person who is telling a story, either in the real world or as a character in a book.
An ancestor is someone who came before you in your family, such as your great-grandmother or great-grandfather.
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