| Industrienation | industrial nation |
| Indoktrination | indoctrination |
| Indiskretion | indiscretion |
| Industriegebiet | industrial area industrial park |
| Industrieland | industrial country |
| Industrieobligation | corporate bond industrial bond industrial obligation |
| Industriestaat | industrialized country |
| Industriestadt | industrial city industrial town |
| Illustration | illustration |
| Destination | destination |
| Insemination | insemination |
| Investigation | investigation |
| Industriegebiete | industrial park |
| Indikation | indication |
| Industrie | industry manufacturing |
| Industrieller | industrialist |
| Industrieminute | industrial time unit |
| Industriespionage | industrial espionage industrial spying |
| industriell | industrial |
| Frustration | frustration exasperation |