(1)签署人
将其姓名签署于书面文件上的人；其目的或为认证该文件或为采纳其条款内容，或为使自己受该文件拘束，将其签名附着于任何文件的人。

(2)认购人；认股者
同意购买公司证券，包括股票及债券的人。

(3)捐助人

(4)(报刊的)订户

• action ex contractu
• action ex delicto
• action for accounting
• action for conspiracy
• action for death
• action for divorce
• action for mesne profits
• action for money had and received
• action for poinding
• action in equity
• action in personam
• action in rem
• actionner
• action of a local nature
• action of annuity
• action of assize
• action of assumpsit
• action of book account
• action of book debt
• action of contract
• action of covenant
• action of debt
• action of forcible entry
• action of reprobator
• action of trespass