| Subject | English | Dutch |
| mech.eng. | fir tree root | denneboomvoet |
| nat.sc., agric. | fir-tree | zilverden (Abies spp.) |
| nat.sc., agric. | fir-tree | zilverspar (Abies spp.) |
| nat.sc., agric. | fir-tree | abies-soort (Abies spp.) |
| nat.sc., agric. | fir-tree weevil | grote dennesnuitkever (Curculio abietis, Hylobius abietis) |