| first-in-first-out store | FIFO-Speicher |
| first-in-last-out mode | LIFO-Modus |
| first-kind regression | Regression erster Art |
| first-leg game | Vorspiel |
| first-level address | direkte Adresse |
| First-line | Reihe |
| first-name dealings | Geduze |
| first-name terms | Geduze |
| first-operation drawing | Erstzug |
| first-order approximation | erste Näherung |
| first-order predicate logic | Prädikatenlogik ersten Ranges |
| first-order treatment | erste Näherung |
| first-past-the-post system | Mehrheitswahlrecht |
| first-person narrative | Ich-Erzählung |
| first-person narrator | Icherzähler |
| first-person shooter | Ego-Shooter |
| first-person shooter , FPS | Ego-Shooter |
| first-person-shooter | Ego-Shooter |
| first-rate | einmalig |
| first-rate credit | erstrangiger Kredit |
| first-rate hotel | ausgezeichnetes Hotel |
| first-rate medicine | Spitzenmedizin |
| first-run cinema | Premierenkino |
| first-run movie theater | Premierenkino |
| first-sale doctrine | Urheberrechtserschöpfungsgrundsatz |
| first-strike capability | Erstschlagsfähigkeit |
| first-strike weapon | Erstschlagwaffe |
| first-surface mirrored | vorderseitig verspiegelt |
| first-team place | Platz in der ersten Elf |
| first-team regular | Stammspieler |
| first-time | erstmalig |
| first-time ... | erstmalig ... |
| first-time employee | Berufseinsteiger |
| first-time employees | Berufseinsteiger |
| first-time golfer | Golf-Anfänger |
| first-time job-seeker | erstmalig Arbeitsuchender |
| first-time pass | Direktpass |
| first-time voter | Jungbürger |
| first-time voters | Jungbürger |
| first-to-make last-to-break contact | voreilender Kontakt |
| first-window rights | Erstverwertungsrechte |
| first-world problems | Jammern auf hohem Niveau |
| first-year student | Studienanfänger |
| first-year students | Studienanfänger |
| firstborn | erstgeboren |
| firstborn child | Erstling |
| firstborn daughter | Erstgeborene |
| firstborn son | Erstgeborene |
