A reason offered for or against a proposition, opinion, or measure; a reason offered in proof, to induce belief, or convince the mind; followed by for or against.

In logic, an inference drawn from premises, which are indisputable, or at least of probable truth.

The subject of a discourse or writing.

An abstract or summary of a book, or the heads of the subjects.

A debate or discussion; a series of reasoning; as, an argument was had before the court, in which argument, all the reasons were urged.

In astronomy, an arch by which we seek another unknown arch, proportional to the first.