| Intelligenzbestie | genius |
| Intelligenzquotient | intelligence quotient |
| Intelligent Design | intelligent design |
| Intelligenzija | intelligentsia |
| Intelligenz | intelligence |
| intelligent | intelligent |
| intelligentes Leben | intelligence |
| intelligibel | intelligible |
| Interlineares | interlinear |
| Intelligibilität | comprehensibility |
| unterlizenzieren | sublicense |
| Heiligenfest | saint's day |
| Interferometrie | interferometry |
| Interlinear- | interlinear |
| Internierte | internee |
| Internistin | internist |
| hinterlistig | disingenuous deceitful |
| intersentential | intersentential |
| intersententiell | intersentential |
| interventiv | interventive intervention |