| Subject | Spanish | English |
| life.sc., transp. | aguas libres | open water |
| life.sc. | aguas libres de hielo marino | bergy water |
| transp., mater.sc. | agujeros libres | free holes |
| commun. | altavoz manos libres | hands-free speakerphone |
| transp. | anejo del libro horario | general information appendix |
| commun., IT | aparato de "manos libres" | handsfree set |
| nat.sc., agric. | asociacion del libro genealogico | herd-book society |
| agric. | asociación del libro genealógico | herd-book society |
| market. | bienes libres | free goods |
| fin., tax. | bienes libres de impuestos | tax exempted goods |
| commun. | bolsillo de libro | book pocket |
| gen. | camisa de libro | sleeve |
| commun., transp. | cola del libro | bottom edge |
| fin. | conceder contingentes arancelarios libres de derechos o con derechos reducidos | to grant tariff quotas at a reduced rate of duty or duty free |
| mech.eng., el. | conexiones libres | loose leads |
| agric. | contenido de ácidos grasos libres | free fatty acid content |
| agric. | corticosteroides libres | free circulating corticosteroide |
| commun. | cuerpo del libro | body of a book |
| commun. | decoración del libro | casing in |
| el. | densidad de electrones libres | density of free electrons |
| el. | densidad de electrones libres | density of electrons |
| nat.sc., agric. | eliminación del libro genealógico | dissolution in the herdbook |
| chem., el. | enlaces libres | dangling bonds |
| commun., IT | estación de "manos libres" | handsfree set |
| el. | estructura de fibras libres | loose structure |
| commun., polit. | Federación Europea de Radios Libres | European free radio federation |
| commer., cultur. | Feria del Libro de Francfort | Frankfurt Book Fair |
| commun. | función "manos libres" | hands free function |
| mech.eng. | generador de émbolos libres | free-piston generator |
| commun. | historia del libro | historical bibliography |
| econ. | industria del libro | book trade |
| health. | inhibidor de radicales libres | free-radical inhibitor |
| industr. | libra "avoirdupois" | pound (libra) |
| tech. | libra "avoirdupois" | pound avoirdupois |
| fin. | libra chipriota | Cyprus pound |
| fin. | libra esterlina | pound sterling |
| fin. | libra irlandesa | Irish pound |
| fin. | libra irlandesa | punt |
| econ., fin. | libra irlandesa | pound |
| econ., fin. | libra irlandesa | Irish punt |
| fin. | libra israelita | shekel |
| fin. | libra libanesa | lebanese pound |
| fin. | libra maltesa | Maltese pound |
| fin. | libra maltesa | Malta pound |
| tech. | libra por pie cuadrado | lb-sq.ft |
| tech. | libra por pie cuadrado | 1 pound per square foot |
| tech. | libra por pulgada cuadrada | lb-sq.in. |
| tech. | libra por pulgada cuadrada | 1 pound per square inch |
| fin. | libra siria | Syrian pound |
| fin. | libra sudanesa | Sudanese pound |
| polit., law | librar comisiones rogatorias | issue letters rogatory |
| bank. | librar un cheque | issue a cheque |
| law, mexic. | librar un cheque en descubierto | issue a bad check |
| law | librar un cheque sin fondos | issue a bad check |
| law | librar un cheque sin provisión | issue a bad check |
| fin. | librar una letra de cambio contra alguien | to draw a bill of exchange upon somebody |
| fin. | libras bloqueadas | blocked sterling |
| industr. | libras por pulgada cuadrada | pounds per square inch |
| el. | libras por pulgada cuadrada de presión absoluta | pounds per square inch absolute |
| gen. | libre circulación del conocimiento | free movement of knowledge |
| commun. | libro antiguo | older publication |
| ed., commun. | libro autorizado | book authorised by the university |
| gen. | Libro Azul | Blue Paper |
| gen. | Libro Azul | Blue Book |
| gen. | Libro Azul | An Integrated Maritime Policy for the European Union |
| polit., construct. | libro blanco | White Paper |
| construct., econ. | Libro Blanco de realización del mercado interior | White Paper on completion of the internal market |
| construct., econ. | Libro blanco sobre asociaciones y fundaciones | White Paper on Voluntary Organizations and Foundations |
| health., agric., food.ind. | Libro Blanco sobre seguridad alimentaria | White Paper on Food Safety |
| commun. | Libro Blanco sobre una política europea de comunicación | White Paper on a European Communication Policy |
| construct., transp., avia. | Libro blanco-Gestión del tráfico aéreo-Liberalización del espacio aéreo europeo | White Paper on air traffic management-Freeing Europe's airspace |
| nat.sc., agric. | libro cerrado | closed herdbook |
| gen. | libro con cubierta rìgida | hardback (A book bound in rigid board covers) |
| gen. | libro con grabados | picture book (A book of illustrations with little or no text) |
| industr., construct. | libro contable | book-keeping book |
| market., account. | libro contable | accounting book |
| industr., construct. | libro contable | account book |
| transp. | libro de a bordo | log book |
| transp., avia. | libro de a bordo | journey log book |
| transp., avia. | libro de a bordo | air log |
| transp. | libro de acarreos | cartage book |
| law | libro de acciones | list of shareholders |
| law | libro de accionistas | list of shareholders |
| econ., market. | libro de acreedores y deudores | creditor and debtor book |
| gen. | libro de actas | journal |
| gen. | Libro de Actas | Collected Minutes of the Cortes |
| gen. | libro de actas | minute-book |
| gen. | libro de actas | proceedings |
| comp., MS | libro de activos | asset book (Accounting records (ledgers or journals) for a specific reporting purpose, such as financial or taxes) |
| econ., market. | libro de almacén | warehouse book |
| econ., market. | libro de almacén | stock book |
| gen. | libro de artista | bookwork |
| gen. | libro de artista | illustrated book |
| gen. | libro de artista | book art |
| commun. | libro de bolsillo | pocket book |
| immigr., tech. | libro de bolsillo | paperbound |
| gen. | libro de bolsillo | paperback (softback; A book issued in paper covers) |
| market., fin. | libro de caja | cash-book |
| fin. | libro de caja | ledger |
| fin. | libro de caja | cash book |
| comp., MS | Libro de calificaciones | Gradebook (A worksheet that contains the collection of grades for all students enrolled in a particular class) |
| commun. | libro de circunstancia | festive book |
| insur. | libro de cobro de primas | collecting book |
| gen. | libro de cocina | cookbook |
| fin. | libro de comercio | ledger |
| transp. | libro de composiciones | passenger train composition list |
| market. | libro de compras | purchase journal |
| market. | libro de compras | bought invoice book |
| market. | libro de compras | purchase day book |
| market. | libro de compras | bought day book |
| commun. | libro de consulta | reference book |
| market., account. | libro de contabilidad | accounting book |
| fin. | libro de contabilidad | book of accounts |
| econ., agric. | libro de control | management records |
| econ., agric. | libro de control | control book |
| gen. | libro de cuentas | account-roll |
| gen. | libro de cuentas | account-book |
| IT | libro de códigos | code book |
| gen. | libro de dibujos | sketch book (A book of, or for, sketches or rough drawings) |
| transp. | libro de entregas | delivery record book |
| gen. | Libro de estilo interinstitucional | Interinstitutional style guide |
| transp. | libro de expediciones | forwarding book |
| proced.law. | libro de familia | family register |
| transp. | libro de familia numerosa | family ticket identity card |
| commun., transp. | libro de faros | light list |
| transp. | libro de firmas | receipt book |
| IT | libro de guardia | log-book |
| commun. | libro de himnos | hymn book |
| commun. | libro de hojas sueltas | loose-leaf publication |
| relig., commun. | libro de Horas | book of Hours |
| comp., MS | libro de impuestos | sales tax book (A record of sales and purchase transactions for sales tax reporting in Italy) |
| mech.eng. | libro de instrucciones | instruction book |
| transp. | libro de itinerario | working timetable |
| transp. | libro de llegadas | arrivals book |
| gen. | libro de lujo | coffee-table book (A large, lavishly illustrated book) |
| transp. | libro de marcha | working timetable |
| transp. | libro de marcha simplificado | simplified working timetable |
| transp. | libro de matrícula | registration card |
| law | libro de método | process book |
| market. | libro de normas | regulations book |
| market. | libro de normas | regulations manual |
| market. | libro de normas | procedure manual |
| fin., work.fl. | libro de notificaciones | reporting log |
| commun. | libro de ocasión | second-hand book |
| gen. | libro de operaciones | log book |
| commun. | libro de oraciones | prayer book |
| fin. | libro de pago de salarios | payroll journal |
| commun., transp. | libro de portes pagados | carriage paid record book |
| law | libro de procedimiento | process data book |
| law | libro de procedimiento | process book |
| fish.farm. | libro de producción | production logbook |
| insur. | libro de recibos de primas | premium receipt book |
| commun. | libro de referencia | reference book |
| transp., energ.ind. | libro de registro de hidrocarburos | oil record book |
| transp., mater.sc. | libro de revisiones | revision block |
| commun. | libro de salmos | hymn book |
| gen. | Libro de signatarios autorizados | Book of Authorised Signatories |
| polit. | libro de texto | textbook |
| ed., nat.sc. | libro de texto de ciencias | scientific textbook |
| comp., MS | libro de visitas | guestbook (A module in Spaces where visitors can leave comments) |
| transp., avia. | libro de vuelo | log-book |
| transp., avia. | libro de vuelo | logbook |
| transp., avia. | libro de vuelo | log book |
| transp., avia. | libro de vuelo | flight log |
| transp., avia. | libro de vuelo | air log |
| fin. | libro de órdenes limitadas | limit order book |
| IT | libro del código | code book |
| commun. | libro descabalado | an old volume |
| gen. | libro diario | journal |
| gen. | libro diario | daybook |
| IT | libro electrónico | digital book |
| inet. | libro electrónico | electronic book e-book |
| IT | libro electrónico | e-book |
| IT | libro electrónico | electronic book |
| IT | libro electrónico | ebook |
| comp., MS | libro electrónico | eBook (An electronic book product offered by Microsoft) |
| commun. | libro emano | dwarf book |
| commun. | libro encuadernado | book with a stiff cover |
| industr., construct. | libro encuadernado | bound book |
| ed. | libro escolar | school book |
| econ. | libro escolar | school textbook |
| gen. | libro filial | filial book |
| gen. | libro filial | filial breeding book |
| gen. | libro filial | daughter studbook |
| nat.res., agric. | libro genealógico | herdbook |
| anim.husb. | libro genealógico | herd-book |
| nat.res., agric. | libro genealógico | flock book |
| nat.sc., agric. | libro genealógico abierto | open herdbook |
| anim.husb. | libro genealógico con registro de méritos | breeding book |
| anim.husb. | libro genealógico filial | daughter studbook |
| commun. | libro hablado | spoken book |
| transp. | libro horario | timetable |
| commun. | libro ilustrado | grangerized book |
| gen. | libro ilustrado | picture book (A book of illustrations with little or no text) |
| gen. | libro ilustrado | illustrated book (Book that includes visual images to explain, augment, or embellish the text) |
| transp. | libro itinerario | working timetable |
| commun. | libro litúrgico | liturgical book |
| transp., polit., UN | Libro naranja | orange book |
| tax. | Libro negro | black paper |
| med. | libro negro | black paper |
| commun., transp., mech.eng. | libro nuevo | new title |
| gen. | libro objeto | bookwork (book object; Art object which makes reference to the structure of the book) |
| comp., MS | libro PowerPivot | PowerPivot workbook (An Excel 2010 workbook that contains PowerPivot data) |
| commun. | libro prohibido | prohibited book |
| gen. | libro raro | second-hand |
| commun. | libro raro | rare book |
| gen. | libro raro | antiquarian bookseller |
| lab.law. | libro registro | duty record book |
| law, fin. | libro-registro | book |
| law, market. | libro registro de accionistas | main register |
| transp. | libro registro de circulación | operating statement |
| transp., nautic., environ. | libro registro de hidrocarburos | oil record book |
| relig., commun. | libro sagrado | sacred scripture |
| transp., avia. | libro técnico | technical log |
| commun. | manos libres | hands-free |
| commun. | manos libres | hands free enables |
| comp., MS | manos libres | speakerphone (The microphone and speaker on a calling device/phone that allows you to converse with someone without using the handset or headset) |
| industr., construct., met. | medidas libres | stock sizes |
| industr., construct., met. | medidas libres | stock sheets |
| agric. | mezcladora libra | free mixer |
| commun. | museo del libro | book museum |
| commun. | no-libro | non-book material |
| gen. | oposiciones libres | open competition |
| commun. | ornamentación del libro | book decoration |
| commun. | patología del libro | pathology of books |
| tech., mech.eng. | peso por libra de empuje | weight per pound of thrust |
| industr., construct. | puerta de libro | folding door |
| el. | puesto de mando de palancas libres | power signal box with thumb switches |
| el. | puesto de mando de palancas libres | power signal box with free levers |
| transp. | puesto de manecillas libres | free switch signal box |
| commun., el. | puesto de palancas libres | free-lever signal box |
| transp., el. | puesto de palancas libres de entrada y salida | entrance-exit free lever signal box |
| transp., el. | puesto de palancas libres de entrada y salida | N-X type free lever signal box |
| commun., transp. | puesto eléctrico de palancas libres | power signal box with levers or thumb switches |
| transp. | puesto mecánico con palancas libres | free lever frame |
| earth.sc. | radicales libres | free radicals |
| transp. | red para globos libres | free balloon net |
| life.sc. | redes libres | unconstrained nets |
| life.sc. | redes libres | free nets |
| fin. | rentas no libres de impuesto | unfranked income |
| fin. | reservas de liquidez libres | free liquidity reserves |
| IMF. | reservas libres | free reserves |
| industr., construct., mech.eng. | rodillos libres | dead rolls |
| industr., construct., mech.eng. | rodillos libres | dead rollers |
| nat.sc., agric. | servicio del libro genealógico | herdbook keeping |
| commun., IT | tabla de canales libres/ocupados | free/busy channel table |
| commun., industr., construct. | tapa de libro | book cover |
| IT | teléfono "manos libres" | handsfree |
| commun. | teléfono "manos libres" | no-hands telephone |
| commun. | teléfono "manos libres" | speaker phone |
| IT | teléfono "manos libres" | hands-free telephone |
| gen. | Unión de Demócratas Libres | Alliance of Free Democrats |
| UN | zonas libres de armas nucleares | nuclear-weapon-free zones |
| chem. | ácidos grasos libres | free fatty acids |
| agric. | ácidos orgánicos libres | free organic acids |
