| Subject | English | Spanish |
| crim.law. | College of Principal Public Prosecutors | Colegio de fiscales generales |
| econ. | companies or firms having their principal place of business within the Community | las sociedades cuyo centro de actividad principal se encuentre dentro de la Comunidad |
| UN | consistent with the purposes and principals of the un | compatibles con los propósitos y principios de la ONU |
| gen. | Convention concerning Statistics of Wages and Hours of Work in the Principal Mining and Manufacturing Industries, Including Building and Construction, and in Agriculture | Convenio sobre estadísticas de salarios y horas de trabajo |
| gen. | Convention concerning Statistics of Wages and Hours of Work in the Principal Mining and Manufacturing Industries, Including Building and Construction, and in Agriculture | Convenio relativo a las estadísticas de salarios y horas de trabajo, en las industrias principales mineras y manufactureras, en la edificación y la construcción y en la agricultura |
| gen. | detect the principal points of | detectar los puntos principales |
| fin. | Guaranteed Recovery of Investment Principal Program, GRIP | Programa derecuperación, garantizada del principal de las inversiones GRIP |
| fin. | payment of principal | pago del principal |
| law | principal aim of the measure | criterio del objetivo principal del acto |
| transp., tech. | principal axis of compliance | eje principal de inercia |
| patents. | principal count of indictment | punto principal de acusación |
| patents. | principal count of indictment | capítulo de acusación |
| patents. | principal criterion of the invention | criterio principal de la invención |
| transp. | principal direction of stress | dirección principal |
| life.sc. | principal directions of distortion | direcciones principales de una alteración |
| law, market. | principal method of formation | modo de constitución principal |
| life.sc. | principal network of heights | red principal de altitud |
| life.sc. | principal network of heights | red de nivelación principal |
| market., fin. | principal of an export credit | principal de un crédito a la exportación |
| fin. | principal of an organiser of a sale by public auction | comitente de un organizador de ventas en subasta pública |
| stat. | principal of maximum entropy | principio de entropía maxima |
| IMF. | principal office of the Fund | sede del FMI |
| law, fin., busin. | principal place of business | centro de actividad principal |
| law, tax. | principal place of business | establecimiento principal |
| transp., avia. | principal place of business | oficina principal |
| busin. | principal place of business | principal centro de negocio (sankozh) |
| earth.sc., life.sc. | principal points of a lens | puntos principales de una lente |
| market., fin. | repayment of principal | reembolso del principal |
| fin. | repayment of the principal | reembolso del principal |
| econ. | separate trading of interest and principal | Valor segregado |
| fin. | Separate Trading of Registered Interest and Principal of Securities | segregación de principal y cupones |
| gen. | separate trading of registered interest and principal of securities | venta separada del interés y el principal de los valores |
| fin. | Separate Trading of Registered Interest and Principal of Securities Program STRIPS | Programa de venta separada del interés y el principal de los valores |
| fin. | total amount of a loan in principal and interest | montante global de un empréstito en principal y en intereses |