Principal一词在法律英语中：

1、(贷款的) 本金The principal of a loan is the original amount of the loan, on which you pay interest. 即贷款、存款或投资在计算利息之前的原始金额。企业本金（包括固定资金和流动资金）作为整体，是同时的、在空间上并列地处在它的各个不同阶段上，以不同的本金占用形态表现。

principal and interest 本利，本金及利息

repayment of principal 还本；偿还本金

2、（尤指商务或法律事务的）当事人，委托人a person that you are representing, especially in business or law

3、most important; main 最重要的；主要的

principal product 主产物

principal shareholder 主要股东

参考双语例句：

For the period in which interest rate is a fixed value, nper for a total investment (or loan), that the investment (or loan) the total number of payment period, pv for the period due to (or receive) the amount, its value in the annuity period (during or investment) remain unchanged, Pv usually include principal and interest, but does not include other fees and taxes, pv is the present value, or a series of future payments and the current cumulative value, also known as the principal, if omitted pv, is the assumption that its value is zero, type for the number of 0 or 1, for the designated time period for payment in the beginning or end, if omitted from t, then the assumption that its value is zero.

其中rate为各期利率，是一固定值，nper为总投资（或贷款）期，即该项投资（或贷款）的付款期总数，pv为各期所应付给（或得到）的金额，其数值在整个年金期间（或投资期内）保持不变，通常Pv包括本金和利息，但不包括其它费用及税款，pv为现值，或一系列未来付款当前值的累积和，也称为本金，如果省略pv，则假设其值为零，type为数字0或1，用以指定各期的付款时间是在期初还是期末，如果省略t，则假设其值为零。

Subject to the provisions of the Companies Law, if the Directors consider it necessary or appropriate, the Company may establish and maintain a local or branch register of shareholders at such location as the Directors think fit and, while the issued share capital of the Company is, with the consent of the Directors, listed on any stock exchange in Hong Kong, the Company shall keep its principal or a branch register of shareholders in Hong Kong.

在公司法条文规限下，如董事认为必需或合适，本公司可在董事认为合适的地点设立及备存当地股东登记册或股东登记分册。如本公司的已发行股本经董事同意于香港任何证券交易所上市，本公司须于香港备存股东登记主册或分册。

A local authority may, for example, decide to allocate resources from its budget to increase the wage fund for teachers, to offer a dwelling free of charge or attract young university graduates to go as teachers to peripheral areas by offering to repay the principal sum of their student loans for them.

比例，地方当局可以决定从其预算中拨出资源来增加教师工资基金，免费提供住所，或吸引大学毕业生到周边地区当教师，替他们偿还其学生贷款本金。

For those cases in which they do not, a court may take into consideration a variety of other additional factors, including the location of the debtor’s books and records, the location where financing was organized or authorized, the location from which the cash management system is run, the location of the principal bank, the location of employees, the location in which commercial policy is determined, the site of controlling law governing the main contracts of the company, the location from which purchasing or sales staff, accounts payable and computer systems are managed, the location where reorganization is being conducted, the location whose law will apply to most disputes, the location in which the debtor is subject to supervision or regulation, and the location whose law governs the preparation and auditing of accounts.

对于那些不易确定的情形，法院可以进一步考虑到其他各种情形，其中包括：在何处存放债务人的账簿和记录、在何处进行融资的组织和审批工作、在何处进行现金管理系统的操作、主要银行位于何处、雇员位于何处、在何处确定商业政策、在何处调控关于公司主要合同的法律、在何处对采购或营销人员以及应付账款和计算机系统进行管理、在何处进行当下的重组、对大多数争议适用何处的法律、在何处对债务人进行监管、对账目编制和审计适用何处的法律。