| insuperable | insuperable |
| insuperably | invencible |
| insupportable | intolerable |
| insurance | seguro |
| insurance business | compañía de seguros |
| insurance coverage | cobertura de seguro |
| insurance policy | póliza de seguro |
| insure | cubrir |
| insured | cubierto |
| insurer | asegurador |
| insurgence | levantamiento |
| insurgency | levantamiento |
| insurgent | insurgente |
| insurmountable | invencible |
| insurrection | levantamiento |
| Insurrectionary anarchism | Anarquismo insurreccionalista |
| insurrectionist | sedicioso |
| INT | Instituto Nacional del Transp |
| intact | entero |
| intaglio | talla |
| intake | admisión |
| intangible | incomprensible |
| Intanki National Park | Parque Nacional de Intanki |
| Intef I | Intef I |
| Intef II | Mentuhotep I |
| Intef III | Intef III |
| Intef VIII | Intef VI |
| integer | entero |
| Integer division | Algoritmo de la división |
| Integer factorization | Factorización de enteros |
| integral | completo |
| Integral closure | Dominio de integridad |
| Integral membrane protein | Proteína integral de membrana |
| integral natural reserve | reserva natural integral |
| Integral theory | Enfoque integral |
| Integral yoga | Yoga integral |
| Integralismo Lusitano | Integralismo Lusitano |
| integrant | integrante |
| integrate | integrar |
| Integrated circuit | Circuito integrado |
| Integrated development environment | Entorno integrado de desarrollo |
| Integrated Device Technology | IDT |
| integrated environmental protection technology | tecnología integrada de protección del medio ambiente |
| integrated management | gestión integrada |
| integrated pest control | control integrado de plagas |
| integrated pollution control | control de contaminación integrado |
| Integrated Taxonomic Information System | Sistema Integrado de Información Taxonómica |
| Integrating factor | Ecuación diferencial exacta |
| integration | incorporación |
| Integrin | Integrina |
| Integrism | Integrismo |
| integrity | integridad |
| integument | integumento |
| Intel | Intel Corporation |
| Intel APIC Architecture | APIC |
| Intel Core | Intel Core Duo |
| Intel Corporation | Intel Corporation |
| Intel Pentium Dual-Core | Pentium E |
| Intel Turbo Memory | Caché Robson |
| Intel Viiv | Intel Viiv |
| Intel Virtualization Technology | Máquina virtual |
| Inteligence | Inteligencia |
| intellect | intelectual |
| intellectual | intelectual |
| Intellectual giftedness | Superdotado |
| Intellectual property | Propiedad intelectual |
| intellectual training | preparación mental |
