3. a series of statements typically used to persuade someone
of something or to present reasons for accepting a
conclusion
-Wikipedia
a coherent series of reasons, statements, or facts intended
to support or establish a point of view
-Mirriam Webster
an exchange of diverging or opposite views, typically a
heated or angry one; a reason or set of reasons given
with the aim of persuading others that an action or
idea is right or wrong.
- Dictionary from the web