Definitions
1.nounA cause:
2.nounRational thinking (or the capacity for it); the cognitive faculties, collectively, of conception, judgment, deduction and intuition."Mankind should develop reason above all other virtues."
3.nounSomething reasonable, in accordance with thought; justice.
4.nounRatio; proportion.
5.verbTo deduce or come to a conclusion by being rational
6.verbTo perform a process of deduction or of induction, in order to convince or to confute; to argue.
7.verbTo converse; to compare opinions.
8.verbTo arrange and present the reasons for or against; to examine or discuss by arguments; to debate or discuss."I reasoned the matter with my friend."
9.verbTo support with reasons, as a request.
10.verbTo persuade by reasoning or argument."to reason one into a belief; to reason one out of his plan"
11.verb(with down) To overcome or conquer by adducing reasons."to reason down a passion"
12.verb(usually with out) To find by logical process; to explain or justify by reason or argument."to reason out the causes of the librations of the moon"