りせい
reason; reasoning power; (one's) sense
Man has reason, animals do not.
・logic
・arrangement
・reason
・justice
・truth
・sex
・gender
・nature
りせいてき
rational
りせいにうったえる
to appeal to one's reason
りせいのタガ
the bounds of reason;the limits of (common) sense
りせいろん
rationalism
りせいのたが