| interstellar | interstellaire |
| Interstellar absorption | Absorption interstellaire |
| Interstellar bubbles | Bulle interstellaire |
| Interstellar cloud | Nuage interstellaire |
| Interstellar communication | Communication interstellaire |
| Interstellar dust | Poussiere interstellaire |
| Interstellar extinction | Extinction interstellaire |
| Interstellar gas | Gaz interstellaire |
| Interstellar magnetic fields | Champ magnetique interstellai |
| Interstellar matter | Matiere interstellaire |
| Interstellar molecules | Molecule interstellaire |
| Interstellar reddening | Rougissement interstellaire |
| Interstellar scintillation | Scintillation interstellaire |
| Interstellar travel | Voyage interstellaire |
| Interstellar winds | Vent interstellaire |
| interstice | interstice |
| Intertextuality | Intertextualité |
| intertidal zone | zone intertidale |
| Intertitle | Intertitre |
| Intertropical Convergence Zone | Zone de convergence intertropicale |
| intertwine | entrelacer |
| interval | interstice |
| intervene | intervenir |
| Intervening period | Temps |
| intervention | intervention |
| intervention fund | fonds d'intervention |
| intervention in nature and landscape | intervention au niveau de la nature et des paysages |
| intervention on land | intervention sur les terres |
| intervertebral disc | disque intervertébral |
| Intervertebral fusion | Fusion |
| interview | interview |
| Interview with a vampire | Entretien avec un vampire |
| Interview with Jimbo Wales | Interview de Jimbo Wales |
| Interview with the Vampire | Entretien avec un vampire |
| interviewee | interviewé |
| interviewer | interrogateur |
| Intervista | Intervista |
| Interwar period | Entre-deux-guerres |
| interweave | tisser ensemble |
| InterWiki | InterWiki |
| Interzonal | Tournoi interzonal |
| intestinal | intestinal |
