| Subject | English | German |
| gen. | against first class bank guarantee | gegen erstklassige Bankgarantie |
| gen. | airman first class USAF | Hauptgefreiter |
| amer. | airman first class | Gefreite |
| gen. | Airman First Class | Obergefreiter |
| fin. | assurance of a first-class rating | erstklassiges Kreditstanding |
| fin. | assurance of a first-class rating | bestes Rating |
| gen. | Detective Constable First Class | Kriminaloberwachtmeister |
| tech. | first class | erstrangig |
| busin. | first class | erste Klasse |
| biol. | first class | erstklassige gruene Banane |
| busin. | first class | erste Wahl |
| gen. | first class | erstklassig |
| busin., fin. | first class borrower | erstklassiger Schuldner |
| busin., fin. | first class borrower | erstklassiger Kreditnehmer |
| industr., construct. | first class brick | Ziegel erster Wahl |
| industr., construct. | first class brick | gut gebrannter Ziegel |
| industr., construct. | first class brick | Vollziegel |
| industr., construct. | first class brick | roter Ziegel |
| met. | first class coal | Kohle bester Sorte |
| phys. | first class conductor | Leiter erster Klasse |
| met. | first class cut | Glattschnitt |
| zoot. | first class dam | Elitemuttertier |
| zoot. | first class dam | Elitemutter |
| biol. | first class grasses | Gräser ersten Ranges |
| gen. | first class location | Toplage |
| commun. | first class mail | erste Klasse-Sendungen |
| commun. | first class mail | Vorrangsendungen |
| paraglid. | first class pilot | Fliegerkanone |
| sail. | first of the class | Erster der Jachtklasse |
| inf. | first-class | prima |
| econ. | first-class | teuerster, -e, -es |
| econ. | first-class | erster Klasse |
| econ. | first-class | ausgezeichnet |
| gen. | first-class | erstklassig |
| fin. | first-class bill | erstklassiger Wechsel |
| fin. | first-class bill | Primapapier |
| fin. | first-class bill | erstklassiges Handelspapier |
| fin. | first-class bill | prima Wechsel |
| fin. | first-class bond | Obligation erster Ordnung |
| fin. | first-class bond | erstklassige Anleihe |
| commun. | first-class borrower | Geldmarkt erste Adresse |
| commun., IT | first-class certificate | Zeugnis I.Klasse |
| transp. | first-class coach | Wagen 1.Klasse |
| transp. | first-class coach | Reisezugwagen 1.Klasse |
| gen. | first-class compartment train | Erste-Klasse-Abteil |
| anal.chem. | first-class conductor | Leiter 1. Ordnung |
| anal.chem. | first-class conductor | Leiter erster Klasse |
| anal.chem. | first-class conductor | metallischer Leiter |
| anal.chem. | first-class conductor | Elektronenleiter |
| fin. | first-class debenture | erstklassige Anleihe |
| gen. | first-class degree | sehr gutes Examen |
| fin. | first-class issuer | erstrangiger Emittent |
| econ., amer. | first-class mail | Briefpost (Briefe, Postkarten) |
| polygr., amer. | first-class mail | Postsendung erster Klasse |
| law, ADR | first-class mail | Briefpost |
| econ., amer. | first-class matter | Briefpost |
| mining. | first-class ore | verhüttungsfähiges Erz |
| mining. | first-class ore | verkaufsfähiges Erz (mit genügend hohem Metallgehalt) |
| fin. | first-class papers | mündelsicheres Wertpapier |
| fin. | first-class papers | mündelsicher Wert |
| fin. | first-class papers | goldgerändertes Wertpapier |
| fin. | first-class papers | erstklassiges Wertpapier |
| gen. | first-class quality | erstklassige Qualität |
| tech. | first-class radiotelegraph operator | Telegraphiefunker erster Klasse |
| fin., transp. | first-class rail fare | Eisenbahnfahrpreis 1. Klasse |
| gen. | first-class road | Hauptstraße (Straße erster Ordnung) |
| fin. | first-class securities | erstklassige Wertpapiere |
| fin. | first-class security | erstklassiges Wertpapier |
| econ. | first-class ticket | Fahrkarte erster Klasse |
| oper.res. | first-class unit | Forderung mit höchster Priorität |
| f.trade. | goods are in first class condition | Waren sind in erstklassigem Zustand |
| gen. | Petty Officer First Class | Bootsmann |
| amer. | private first class | Hauptgefreite |
| amer. | private first class | Obergefreiter |
| tech. | private first class | Panzerobergrenadier (in armored corps) |
| tech. | private first class | Panzeroberschuetze (in armored corps) |
| tech. | private first class | Oberkanonier (in artillery) |
| tech. | private first class PFC | Oberkraftfahrer (in motor transport) |
| tech. | private first class | Oberreiter (cavalery) |
| gen. | Private First Class | Obergefreiter |
| gen. | private first class | Gefreiter Soldat |
| gen. | private first class | Gefreite (Soldat) |
| tech. | private first class in medical corps | Sanitaetsobergrenadier |
| tech. | private in first class | Obergrenadier (artillery) |
| gen. | Sergeant First Class | Oberfeldwebel |
| gen. | sergeant first class | Oberfeldwebel |
| trav. | travel first-class | erster Klasse reisen (Andrey Truhachev) |
| agric. | wheat of first class quality | Qualitätsweizen |
| agric. | wheat of first-class quality | Qualitätsweizen |