| in vitro | in vitro |
| in vivo | in vivo |
| in petto | in petto |
| in situ | in situ |
| intro | intro |
| Intro | intro introduction launch opening |
| in Eile | in a hurry |
| in Liebe | love |
| in Not | hard-pressed |
| in sich | intrinsic |
| Novität | novelty |
| Jitro | Jethro |
| Nitrox | nitrox |
| Intron | intron |
| intro- | intro- |
| ein Uhr | o'clock |
| in Betrieb | up |
| in Brand | on fire |
| in Person | in person |
| in echt | in the flesh |