| in short supply | knapp |
| in sight | in Sicht |
| in silence | stumm |
| In silico | In silico |
| in silk | blühend |
| in similar vein | im gleichen Stil |
| in simple terms | in einfachen Worten |
| in single file | im Gänsemarsch |
| in single shear | einschnittig |
| in sips | schluckweise |
| in situ | lokal |
| in situ accretionary limestone | organogener Kalkstein |
| in situ catheter | Dauerkatheter |
| in situ hybridisation , ISH | In-situ-Hybridisierung |
| In situ hybridization | In situ-Hybridisierung |
| in situ hybridization , ISH | In-situ-Hybridisierung |
| in situ investigator | Ermittler vor Ort |
| in situ test | Baustellenversuch |
| in six colors | in sechs Farben |
| in six colours | in sechs Farben |
| in size | flächenmäßig |
| in slices | scheibchenweise |
| in slow motion | in Zeitlupe |
| in slow-motion | in Zeitlupe |
| in small pieces | grusig |
| in so far | insofern |
| in so far as | insofern ... als |
| in so many words | ausdrücklich |
| in solidarity | solidarisch |
| In some Arab countries women are still excluded from the right to vote. | In manchen arabischen Ländern sind Frauen immer noch vom Wahlrecht ausgeschlossen. |
| In some cases | In manchen Fällen |
| In some countries, it is opined that ... | In einigen Ländern wird die Meinung vertreten, dass ... |
| in some respects | in mancher Beziehung |
| in some ways | auf eine Art |
| in sooth | in Wahrheit |
| in sore distress | in schwerer Not |
| in spades | zur Genüge |
| in spate | hochwasserführend |
| in spirit | sinngemäß |
| in spite of | dennoch |
| in spite of every effort | trotz aller Mühe |
| in spite of everything | trotz allem |
| in spite of o.s. | unwillkürlich |
| in spite of that | dennoch |
