1 文書を見つけるための辞書。

• theory
• 理論, 原理, 説, 学説, 体系, セオリー, 理説, 公理, 定理
• a well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena; "theories can incorporate facts and laws and tested hypotheses"; "true in fact and theory"
• 自然界のある側面の十分な裏付けがある説明