| in situ | in situ |
| in sich | intrinsic |
| in Eile | in a hurry |
| in Not | hard-pressed |
| in spe | to-be |
| in vitro | in vitro |
| in vivo | in vivo |
| an sich | intrinsic |
| en suite | en suite ensuite |
| Institut | institute institution institution building legal institution |
| in Liebe | love |
| in Stücke | apart |
| in echt | in the flesh |
| in nuce | in a nutshell |
| in petto | in petto |
| von sich | intrinsic |
| an sein | be on burn switch on |
| im Sinne | as in |
| im Sitzen | sit-down |
| Hussit | Hussite |