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 comes before 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 authoritarian system, such as a government or military school, demands that people obey all orders without question.
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 one person authorizes another to do something, they are given official permission to do it.
Authority is the power to command or having 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.
(biology) any agency bringing about activation
someone who administers a business
someone who listens attentively
someone (a person or firm) who contracts to build things
a person who has deposited money in a bank or similar institution
a speaker who dictates to a secretary or a recording machine
someone who exterminates (especially someone whose occupation is the extermination of troublesome rodents and insects)
someone who guards prisoners
(mathematics) a symbol or function representing a mathematical operation
watch over (students taking an exam, to prevent cheating)
someone who supplies provisions (especially food)
an engineer who determines the boundaries and elevations of land or structures
a person who delivers a speech or oration
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