1 文書を見つけるための辞書。

• dewey decimal classification, dewey decimal system, decimal system of classification
• 十部門分類法
• a system used by libraries to classify nonfictional publications into subject categories; the subject is indicated by a three-digit numeral and further specification is given by numerals following a decimal point; publications are shelved by number
• ノンフィクション刊行物を主題ごとのカテゴリーに分類するために図書館で使用されるシステム