1 文書を見つけるための辞書。

• sphere, orbit, area, arena, domain, field
• 分野, 活動範囲, 領分, フィールド, 疆域, 領域, 活動の領域, 範囲
• a particular environment or walk of life; "his social sphere is limited"; "it was a closed area of employment"; "he's out of my orbit"
• 特定の環境や社会的階級