| interrogative | interrogativo |
| interrogative clause | oración interrogativa |
| interrogative pronoun | pronombre interrogativo |
| interrogator | interrogador |
| interrogatory | interrogatorio |
| interrupt | cortar |
| interrupted | discontinuo |
| interruption | interrupción |
| intersect | encontrarse |
| intersecting street | calle lateral |
| intersection | cruce |
| interspace | intervalo |
| intersperse | esparcir |
| interstate | interestatal |
| Interstate Highway System | Red de Autopistas Interestatales de Estados Unidos |
| interstellar | interestelar |
| Interstellar absorption | Absorción interestelar |
| Interstellar bubble | Burbuja interestelar |
| Interstellar cloud | Nube interestelar |
| Interstellar communication | Comunicación interstelar |
| Interstellar dust | Polvo interestelar |
| Interstellar extinction | Extinción interestelar |
| Interstellar gas | Gas interestelar |
| Interstellar matter | Materia interestelar |
| Interstellar molecule | Molécula interestelar |
| Interstellar reddening | Enrojecimiento interestelar |
| Interstellar scintillation | Titilación interestelar |
| Interstellar wind | Viento interestelar |
| interstice | intervalo |
| Interstital water | Agua intersticial |
| Interstitial cystitis | Cistitis intersticial |
| Interstitial frequency | Frecuencia intermedia |
| Interstitial lung disease | Enfermedad pulmonar intersticial |
| Interstitial water | Agua intersticial |
| Intersymbol interference | Interferencia entre símbolos |
| Intertextuality | Intertextualidad |
| intertidal zone | zona entre mareas |
| Intertropical Convergence Zone | Zona de convergencia intertropical |
| intertwine | entrelazar |
| interval | intervalo |
| intervene | intervenir |
| intervening | intermedio |
| Intervening sequence | Intrón |
| intervention | intervención |
| intervention fund | fondo de intervención |
| intervention in nature and landscape | intervención en la naturaleza y el paisaje |
| intervention on land | intervención en la tierra |
| intervertebral disc | disco |
| Intervertebral fusion | Fusión nuclear |
| interview | interrogatorio |
| Interview with a vampire | Entrevista con el Vampiro |
| Interview with Brazilian blogger Ricardo Serran Lobo | Entrevista exclusiva con Ricardo Serran Lobo |
| Interview with Jimbo Wales | Entrevista a Jimbo Wales |
| Interview with the Vampire | Entrevista con el Vampiro |
| interviewee | entrevistado |
| interviewer | entrevistador |
| Intervision | Intervisión |
| Intervista | Entrevista periodística |
| Interviú FS | Interviú Fadesa |
| Interwar period | Período de entreguerras |
| interweave | entretejer |
| Interzonal | Torneo interzonal |
| intestate | intestado |
| intestinal | intestinal |
| intestinal canal | intestino |
