3 文書を見つけるための辞書。

• reason
• 道理, 理由, 訳
• a fact that logically justifies some premise or conclusion; "there is reason to believe he is lying"
• 論理上ある前提あるいは結論を正当化する事実

• rationale, principle
• 道理, 理論的根拠, 原理, 原則, プリンシプル
• (law) an explanation of the fundamental reasons (especially an explanation of the working of some device in terms of laws of nature); "the rationale for capital punishment"; "the principles of internal-combustion engines"
• 根本的な理由の説明（特に、自然の法則に照らしたある装置の動作の説明）

• reason
• 事由, 理屈, 廉, 節理, 根拠, 理合い, 道理, 一理, 訳合い, 理窟, 理くつ, 事わけ, 謂われ, 所為, 筋あい, 所以, 由縁, 理由, 原由, 由, 由来, 筋合, 成因, 訳柄, 謂れ, 訳合, 理趣, 筋合い, 理合, わけ, 訳, 事訳
• an explanation of the cause of some phenomenon; "the reason a steady state was never reached was that the back pressure built up too slowly"
• ある現象の原因の説明