| Subject | English | Spanish |
| comp., MS | alternate access mapping | asignación alternativa de acceso (An alternate URL mapping that Windows SharePoint Services preserves in the mapping table. It is the URL a user would see, but is not a URL that IIS would give to WSS) |
| ed. | alternate achievement standards | estándares de rendimiento alterno |
| tech. | alternate airdrome | aeródromo auxiliar |
| tech. | alternate airdrome | aeródromo alternativo |
| tech. | alternate airport | aeropuerto eventual |
| tech. | alternate airport | aeropuerto de emergencia |
| tech. | alternate airport | aeropuerto alternativo |
| mil. | alternate assembly area | zona eventual de reunión |
| ed. | alternate assessment | pruebas alternas |
| nat.sc., agric. | alternate bearing | vecería |
| tech. | alternate brace | arriostramiento intermitente |
| tech. | alternate calibration method | método de calibración alterno |
| org.name. | Alternate Chairperson | Presidente suplente |
| radio | alternate channel | canal alterno |
| radioloc. | alternate channel | canal auxiliar |
| tech. | alternate channel | canal alternativo |
| agric. | alternate clear-strip felling | corta por fajas alternas |
| forestr. | alternate clear-strip system | método de cortas a hecho por fajas alternas |
| agric. | alternate clear-strip system | aclareos sucesivos por fajas alternas |
| tech. | alternate command post | puesto de mando alternativo |
| meas.inst. | alternate control | mando alterno |
| el. | alternate current generation | fuente de corriente alterna |
| el. | alternate current generation system | fuente de corriente alterna |
| transp., avia., el. | alternate current generator protection panel | panel de protección de alternador |
| tech. | alternate current instrument and engine fuel control inverter system | sistema inversor del regulador de combustible e instrumento de corriente alterna |
| el. | alternate current voltage | corriente alterna |
| comp., MS | alternate e-mail address | dirección de correo electrónico alternativa (An e-mail address to which password reset information can be sent if a customer forgets the password portion of their Windows Live ID) |
| tech. | alternate emplacement | emplazamiento eventual |
| mil. | alternate firing position | posición eventual de fuego |
| mil. | alternate firing position | posición alterna de fuego |
| tech. | alternate flap switch | interruptor auxiliar de los flaps |
| tech. | alternate frequency | frecuencia auxiliar |
| tech. | alternate frequency | frecuencia alternativa |
| auto. | alternate-fuel vehicle | vehículo con combustible alterno |
| water.res. | alternate-furrow irrigation | riego por surcos alternados |
| med. | alternate hemianesthesia | hemianestesia cruzada |
| med. | alternate hemianesthesia | hemianestesia alterna |
| corp.gov. | alternate home leave travel | viaje de vacaciones en el país de origen alternativo |
| med. | alternate host | huésped secundario |
| med. | alternate host | huésped intermedario |
| law | alternate juror | jurado suplente |
| law | alternate juror | jurado alterno |
| comp., MS | alternate key | clave alternativa (A candidate key that is not designated as the primary key and is used to uniquely identify records in a database table) |
| cryptogr. | alternate letter method | método de codificación alterno |
| pwr.lines. | alternate mark inversion code | código alternante |
| commun. | alternate mark inversion code | código AMI |
| pwr.lines. | alternate mark inversion code | código bipolar |
| pwr.lines. | alternate mark inversion code | AMI |
| el. | alternate mark inversion signal | señal bipolar |
| el. | alternate mark inversion signal | señal AMI |
| el. | alternate mark inversion violation | violación AMI |
| el. | alternate mark inversion violation | violación bipolar |
| pwr.lines. | alternate mark inversion violation | violación de bipolaridad |
| polit., loc.name. | alternate member of the Committee of the Regions | suplente del Comité de las Regiones |
| meteorol. | alternate method | método alternativo |
| meteorol. | alternate minimums | requisitos mínimos del aeropuerto alternativo |
| meteorol. | alternate minimums | requisitos mínimos del aeródromo alternativo |
| tech. | alternate observation post | puesto alterno de observación |
| tech. | alternate observation post | observatorio optativo |
| org.name. | Alternate Permanent Representative | Representante Permanente Suplente |
| org.name. | Alternate Permanent Representative | Representante Permanente Alterno |
| fin. | alternate phone number | número de teléfono alternativo |
| textile | alternate pick | pasada alterna |
| tech. | alternate position | posición eventual de fuego |
| tech. | alternate position | posición alterna de fuego |
| corp.gov. | alternate purpose annual leave | vacaciones anuales para fines alternativos |
| mil., arm.veh. | alternate rallying point | punto alterno de reagrupamiento |
| comp., MS | alternate recipient | destinatario alternativo (An e-mail account to which e-mail messages are forwarded. A user can bundle e-mail messages addressed to different accounts by using a single alternate recipient for all the accounts) |
| tech. | alternate recovery base | base alterna de recuperación |
| tech. | alternate rudder trim switch | interruptor auxiliar de compesación del timón de dirección |
| logist. | alternate supply route | ruta alterna de abastecimiento |
| mil., artil. | alternate target | objetivo eventual |
| mil., artil. | alternate target | blanco optativo |
| commun. | alternate,to | alternando |
| mil. | alternate traversing fire | tiro de siega alternativo |
| mil. | alternate traversing fire | tiro abierto alterno |
| commun. | alternate use | uso alternativo |
| commun. | alternate voice data | transmisión alternada de telefonía y datos |
| law | to be replaced by his alternate | ser sustituido por su suplente |
| fin. | Committee of Alternates | Comité de Suplentes |
| org.name. | Committee of Alternates | CS |
| fin. | Councillors, Alternates and Associates of the Council | consejeros, suplentes y asociados |
| law | Economic and Financial Committee Alternates | Comité Económico y Financiero Suplentes |
| mech.eng. | engine starting on alternate current power | arranque autónomo |
| mech.eng. | engine starting on alternate current power | arranque de motor con corriente alterna |
| transp., avia. | fuel en-route alternate aerodrome | aeródromo alternativo en ruta para combustible |
| fin., unions. | Joint Committee on the Remuneration of Executive Directors and their Alternates | Comisión Conjunta sobre la Remuneración de los Directores Ejecutivos y sus Suplentes |
| pwr.lines. | modified alternate mark inversion code | código bipolar modificado |
| pwr.lines. | modified alternate mark inversion code | código AMI modificado |
| transp., avia. | take-off alternate | alternativo de despegue |
| IMF. | Temporary Alternate Governor | Gobernador Suplente Interino |
| law | the representative and the alternate representative appointed to the Budget Committee | los representantes y los representantes suplentes nombrados para el Comité Presupuestario |
| IT, tech. | two-way alternate communication | comunicación bidireccional alterna |
| IT, tech. | two-way alternate data communication | comunicación bidireccional alterna |
| gen. | we alternate gymnastics with tennis | alternamos la gimnasia con el tenis |