(1)(大陆法)谐谑允诺
指双方当事人达成的一种非正式约定，它在法律上是不可强制执行的。

(2)〈苏格兰〉随意协议；玩笑协议
指双方以开玩笑而非正式达成的协议，法院对此不予强制执行。例如打赌或赌博协议。

• retail sale
• retail sales tax
• retain
• retained earnings
• retained life interest
• retained percentage
• retainer
• retainer of debts
• retainer pay
• retaining a cause
• retaining fee
• retaining lien
• retaking
• retaliation
• retaliatory argument
• retaliatory eviction
• retaliatory law
• retaliatory statute
• retaliatory tariff
• retallia
• retare
• retaxation of costs
• retenementum
• retention
• retention of title as security