| Subject | English | Spanish |
| bank. | acknowledgment of signature | reconocimiento de firma |
| phys.sc. | acoustic signature | signatura acústica |
| fishery | acoustic signature | firma acústica señal de identificación acústica |
| IT | advanced electronic signature | firma electrónica avanzada |
| bank. | attest a signature | legalizar una firma |
| patents. | authentic signature | signatura auténtica |
| patents. | authentic signature | firma auténtica |
| commun., IT | authentication or signature | autenticador |
| gen. | authenticity of the signature | autenticidad de la firma |
| gen. | authorized signature | firma autorizada |
| law | autograph signature | firma autógrafa |
| gen. | be open for acceptance by signature | estar abierto a la aceptación mediante firma |
| law | to be open for signature | estar abierto a la firma |
| bank. | blank signature | firma en blanco |
| fin., commun. | blind signature | firma ciega |
| med. | chemical signature | firma quimica |
| meteorol. | comma-head signature of a cyclone | característica forma de coma de los ciclones |
| IT | Common framework for electronic signatures | marco común para las firmas electrónicas |
| gen. | Convention on the accession of the Kingdom of Spain and the Portuguese Republic to the Convention on the law applicable to contractual obligations opened for signature in Rome on 19 June 1980 | Convenio relativo a la Adhesión del Reino de España y de la República Portuguesa al Convenio sobre la Ley aplicable a las Obligaciones contractuales, abierto a la firma en Roma el 19 de junio de 1980 |
| bank. | corporate signature | firma social |
| bank. | correct signature | firma conforme |
| comp., MS | counter-signature | contrafirma (A signature of an existing signature and message or a signature of an existing signature. A countersignature is used to sign the encrypted hash of an existing signature or to time stamp a message) |
| IT | cryptographic signature key | clave de firma criptográfica |
| law | Declaration on the occasion of the fiftieth anniversary of the signature of the Treaties of Rome | Declaración con ocasión del quincuagésimo aniversario de la firma de los Tratados de Roma |
| gen. | Declaration on the occasion of the fiftieth anniversary of the signature of the Treaties of Rome | Declaración de Berlín |
| law | definitive signature | firma definitiva |
| polit., law | delegate power of signature | delegar la firma |
| law | delegate power of signature to the Registrar | delegación de firma en el Secretario |
| inet. | digital signature | firma digital |
| commun., IT | digital signature | signatura digital |
| comp., MS | digital signature | firma digital (Data that binds a sender's identity to the information being sent. A digital signature may be bundled with any message, file, or other digitally encoded information, or transmitted separately. Digital signatures are used in public key environments and provide authentication and integrity services) |
| comp., MS | Digital Signature Algorithm | Algoritmo de firma digital (The U.S. government standard for digital signatures, as specified by the National Institute of Standards and Technology, in FIPS 186, Digital Signature Standard. DSA is based on signature encryption based on a public and a private key) |
| fin., IT | digitized version of signature | versión digitalizada de la firma |
| commun. | dispersive polarimetric signature | identificación polarimétrica dispersiva |
| fin. | double signature account | cuenta dos signatarios |
| inet. | electronic signature e-signature | firma electrónica |
| ed. | electronic signature | firma electrónica (Compare handwritten signature.) |
| fin., IT | Electronic Signature Committee | comité de la firma electrónica |
| gen. | Electronic Signature Committee | Comité de firma electrónica |
| IT | electronic signature creation data | datos de creación de la firma electrónica |
| IT | electronic signature creation device | dispositivo de creación de firmas electrónicas |
| fin., IT | electronic signature product | producto de firma electrónica |
| comp., MS | e-mail signature | firma de correo electrónico (Text that is automatically added to outgoing e-mail messages, typically used to identify the sender) |
| meteorol. | emission signature | señales de emisión |
| el. | equipment signature | caracterización de un equipo |
| IT | European framework for digital signatures and encryption | marco europeo para las firmas digitales y el cifrado |
| environ. | European Microwave Signature Laboratory | Laboratorio Europeo de Identificación de Microondas |
| work.fl. | facsimile signature | firma en facsímile |
| meteorol. | false signature | señal falsa |
| el. | four-signature coding system | sistema de codificación de cuatro identificaciones |
| commun. | gather signatures | agrupar por cuadernillos |
| ed. | handwritten signature | firma manuscrita |
| ed. | handwritten signature | firma autógrafa |
| patents. | illegible signature | firma ilegible |
| patents. | illegible signature | signatura ilegible |
| commun., tech. | infrared signature | signatura infrarroja |
| commun., tech. | infrared signature | firma infrarroja |
| commun., tech. | IR signature | signatura infrarroja |
| commun., tech. | IR signature | firma infrarroja |
| patents. | joint signature | contrafirma |
| patents. | joint signature | refrendo |
| fin. | joint signature of two duly authorized officials | firma conjunta de dos agentes debidamente habilitados |
| comp., MS | kernel exception signature | firma de excepción de kernel (The exception code, exception parameters, and operating system version (including build number and Service Pack version)) |
| fin. | loan approved and awaiting signature | operación aprobada y pendiente de firma |
| commun. | machine for printing book page signatures | máquina para imprimir referencias en los cuardernillos de los libros |
| earth.sc. | microwave signature laboratory | laboratorio de identificación de microondas |
| proced.law., commer. | Model Law on Electronic Signatures | Ley Modelo sobre las Firmas Electrónicas |
| IT | non-repudiation of digital signature | no repudio de la firma digital |
| meteorol. | oceanic signature | señal oceánica característica |
| int. law. | Patent cooperation Treaty opened for signature at Washington on 19 June 1970 | Tratado de cooperación en materia de patentes firmado en Washington el 19 de junio de 1970 |
| law | period after signature during which they can withdraw from the contract | plazo de rescisión tras la firma |
| hobby, commun. | postage stamp signature | firma de un sello de correos |
| gen. | postage stamp signature | firma de una estampilla postal |
| meteorol. | precipitation cell signature | señal características de las células de precipitación |
| bank. | present for signature | presentar a la firma |
| tech. | printed signature | firma impresa |
| IT | private cryptographic signature key | clave de firma criptográfica privada |
| IT | proof and authentication of electronic signatures | verificación y autentificación de firmas electrónicas |
| bank. | put one's signature | poner su firma |
| commun., IT | qualified certificate for electronic signature | certificado cualificado de firma electrónica |
| commun., IT | qualified electronic signature | firma electrónica cualificada |
| earth.sc. | reading of ultrasonic signatures | lectura de señales de identificación ultrasónicas |
| comp., MS | report signature | firma de informe (A string used to identify the version of a report) |
| comp., MS | sealing signature | firma revalidada (A signature that is applied to an already signed file to ensure that any previously unsigned portion of the file is signed) |
| gen. | Second Protocol conferring on the Court of Justice of the European Communities certain powers to interpret the Convention on the law applicable to contractual obligations, opened for signature in Rome on 19 June 1980 | Segundo Protocolo por el que se atribuyen al Tribunal de Justicia de las Comunidades Europeas determinadas competencias en materia de interpretación del convenio sobre la ley aplicable a las obligaciones contractuales, abierto a la firma en Roma el 19 de junio de 1980 |
| commun., IT | second signature | segunda firma |
| comp., MS | Shared Access Signature | Firma de acceso compartido (A URL that grants access rights to containers, blobs, queues, and tables) |
| law | signature ad referendum | firma ad referendum |
| tech., el. | signature analysis | análisis de firma |
| rem.sens. | signature analysis | análisis de rasgos espectrales |
| rem.sens. | signature analysis techniques | técnica de análisis de rasgos espectrales |
| fin. | signature and approval | firma y visado |
| dat.proc., life.sc. | signature biometrics | firma biométrica |
| commun., IT | signature box | recuadro de firma |
| comp., MS | signature certificate | certificado de firma (A certificate that identifies the certification authority (CA) that issues server and client authentication certificates to the servers and clients that request these certificates) |
| IT | signature check system | sistema de control de firma |
| el. | 4-signature coding system | sistema de codificación de cuatro identificaciones |
| fin., IT | signature creation device | dispositivo de creación de firma |
| bank. | signature falsification | falsificación de firma |
| inet. | signature file | fichero de firma |
| inet. | signature file | archivo de firma |
| commun., transp. | signature group | grupo de firma |
| fin. | signature guarantee | firma garantizada |
| commun. | signature line | línea de pie |
| comp., MS | signature line | línea de firma (A control that allows users to digitally sign a form or document) |
| fin. | signature loan | préstamo sin garantía material |
| IMF. | signature loan | préstamo sin garantía real |
| IMF. | signature loan | préstamo a sola firma |
| fin. | signature loan | préstamo personal |
| econ. | signature loan | préstamo sin caución |
| gen. | signature of agreement | firma de un tratado |
| econ. | signature of an agreement | firma de un tratado |
| law | signature of party's agent or lawyer | firma del Agente o del Abogado de la parte |
| ed. | signature page | hoja de firma |
| gen. | signature reduction device | dispositivo para la reducción de la signatura |
| gen. | signature reduction device | dispositivo para la reducción de firma |
| nat.sc. | signature ring | anillo característico |
| comp., MS | Signature Setup | configuración de firma (The title for a dialog that specifies how a signature line should be signed, including instructions for signers) |
| immigr., tech. | signature slip | panel de firma |
| gen. | signature storage system | sistema de almacenamiento de firmas |
| law | signature subject to ratification, acceptance or approval | firma sujeta a ratificación, aceptación o aprobación |
| law | signature subject to ratification, acceptance or approval | firma simple |
| cultur. | signature tune | careta |
| comp., MS | signature update | actualización de firma (A collection of signatures that adds to the detection capability of the scanner) |
| gen. | signature verification | verificación de firmas |
| fin., IT | signature verification device | dispositivo de verificación de firma |
| IT | signature verification key | clave de verificación de la firma |
| comp., MS | signature word | marcador de fin de sector (A two-byte data structure written at the end of the boot sector after the bootstrap code. Used by the bootstrap loader to determine that the end of boot sector has been reached) |
| law | simple signature | firma sujeta a ratificación, aceptación o aprobación |
| law | simple signature | firma simple |
| earth.sc., environ. | sonic boom signature | signatura del bum sónico |
| fin. | sovereign signature | firma soberana |
| rem.sens. | spectral signature | firma espectral |
| meteorol. | spectral signature | signatura espectral |
| earth.sc. | spectrum signature | firma espectral |
| meteorol. | storm radar signatures | señales de radar características de tormentas |
| fin. | system of double signature | sistema de dobles firmas |
| gen. | target signature | signatura del blanco |
| gen. | target signature | características del blanco |
| commun. | textural signature | rasgo textural |
| commun., IT | texture signature | firma de textura |
| patents. | the Act shall remain open for signature until ... | la Acta queda abierta a la firma hasta el ... |
| meteorol. | thermal signature | señales térmicas características |
| meteorol. | thermal signature | características térmicas |
| meteorol. | Tornadic Vortex Signature | TVS |
| meteorol. | Tornadic Vortex Signature | indicación de vórtice tornádico |
| meteorol. | Tornado Vortex Signature | señal de vórtice tornádico |
| meteorol. | Tornado Vortex Signature | indicación de vórtice tornádico |
| commun. | transpose signatures in binding | transponer hojas de impresión |
| meteorol. | trowal signature | característica que permite identificar una lengua de aire cálido en altura |
| earth.sc. | ultraviolet signature | signatura ultravioleta |
| transp. | unauthorized signature | firma usurpatoria |
| gen. | valve signature | firma de la válvula (aduana2005) |
| gen. | Vehicle Magnetic Signature Duplicator | generador-duplicador móvil de señales magnéticas |
| comp., MS | virus signature | firma de virus (A portion of unique computer code contained in a virus. Antivirus programs search for known virus signatures to identify infected programs and files) |
| bank. | vouch for a signature | admitir una firma |
| comp., MS | XML Signature | firma XML (An XML-based digital signature that can be used to secure the data contained in XML documents. XML Signatures are a standard governed by the World Wide Web Consortium (W3C)) |
| gen. | Your signature legitimized the document | Tu firma legitimó el documento |