| insinuieren | insinuate |
| insistieren | insist |
| instituieren | institute |
| instruieren | instruct |
| inserieren | advertise |
| inspirieren | inspire |
| inspizieren | inspect check examine |
| inszenieren | stage |
| Sinnieren | musing |
| sinnieren | ponder |
| Infigieren | infixation |
| indizieren | index |
| infizieren | infect |
| infundieren | inject |
| inhibieren | inhibit |
| initiieren | initiate |
| injizieren | inject |
| intendieren | intend |
| inventieren | invent |
| Insignien | regalia |