(1)市民权
包括公权和私权两部分。前者如担任官职、选举；后者如占有和处置财产、缔结婚姻、诉讼监护等。

(2)市民法；国内法

(3)罗马城市自治权

• old-age assistance
• old-age exemption
• old age pensions
• Old Age, Survivors, and Disability Insurance/OASDI
• Old and New Extent
• Old Bailey
• Old Booke of Entries
• Old Christmas Day
• Olde Terms de la Ley
• Old Lady Day
• Old Lammas Day
• old line company
• old line policy
• Old Martinmas
• Old Michaelmas Day
• Old Midsummer Day
• Old Natura Brevium/O.N.B.
• old rent
• old school
• old school physician
• old style calendar
• old style/O.S.
• Old Tenures
• oligarchy
• olograph