| Subject | English | German |
| gen. | a quack doctor | ein Kurpfuscher |
| nat.sc., agric. | quack grass | kriechende Quecke (Agropyron repens, Elytrigia repens, Triticum repens) |
| agric. | quack grass | Quecke |
| agric., mech.eng. | quack grass tooth | Federzinken |
| med. | to quack | quacksalbern |
| inf. | village quack | Quacksalber |
| inf. | village quack | Bader |