To Reason

1. (intransitive) To deduce or come to a conclusion by being rational
2. (intransitive) To perform a process of deduction or of induction, in order to convince or to confute; to argue.
3. (intransitive, obsolete) To converse; to compare opinions.
4. (transitive, intransitive) To arrange and present the reasons for or against; to examine or discuss by arguments; to debate or discuss.
5. (transitive, rare) To support with reasons, as a request.
6. (transitive) To persuade by reasoning or argument.
7. (transitive, with down) To overcome or conquer by adducing reasons.
8. (transitive, usually with out) To find by logical process; to explain or justify by reason or argument.