(1)无担保债务
仅以债务人的偿还能力作保障，而非以在特定财产上设定抵押等方式作保障的债务。

(2)无担保债务凭证

(3)公司债券；信用债券；无担保债券
公司根据某项契约发行的长期无担保债务文据。在公司解散时，公司债券持有人作为公司的债权人享有优先于公司股东获得清偿的权利。
(=debenture bond; unsecured bond; naked debenture; plain bond)

(4)海关退税凭单
海关发给进口商，对其进口后又出口的货物予以降低或减免关税的凭单。

• primary conveyance
• primary easement
• primary election
• primary evidence
• primary franchise
• primary insurance coverage
• primary jurisdiction doctrine
• primary legal right
• primary liability
• primary market
• primary meeting
• primary negligence
• primary obligation
• primary patent
• primary powers
• primary purpose
• primary receivership
• prima seisina
• primate
• prima tonsura
• prime
• prime contractor
• prime cost
• prime interest rate
• prime lending rate