| Subject | English | German |
| agric. | leaf of second length | Blaetter zweiter Laenge |
| agric., industr. | leaves of second length | Blätter zweiter Länge |
| opt. | second focal length | bildseitige Brennweite (distance from the centre of a lens to its principal focus on the image side) |
| opt. | second focal length | hintere Brennweite (distance from the centre of a lens to its principal focus on the image side) |
| opt. | second focal length | Bildbrennweite |
| agric. | second length | End-Stammstück |
| construct. | second lengths | Mittelware (Holz) |