| Subject | English | German |
| gen. | a thorn in the side | ein Stachel im Fleisch |
| nat.sc., agric. | apple and thorn fruit weevil | rotbrauner Apfelfruchtstecher (Coenorrhinus aequatus, Rhynchites aequatus) |
| nat.sc., agric. | apple-and-thorn skeletonizer | Apfelblattschabe (Antophila pariana, Simaethis pariana) |
| entomol. | apple-and-thorn skeletonizer | Apfelblattmotte (Choreutis pariana) |
| nat.sc., agric. | apple-and-thorn skeletonizer | Apfelblattmotte (Antophila pariana, Simaethis pariana) |
| entomol. | August thorn | Gelber Eichenzackenrandspanner (Staurppus quercinaria) |
| entomol. | August thorn | Gelber Eichenspanner (Staurppus quercinaria) |
| ornit. | black-backed thorn-billed hummingbird | Schwarzrückenkolibri (Ramphomieron dorsale) |
| bot. | camel's thorn | Kameldorn |
| entomol. | canary-shouldered thorn | Gelber Birkenspanner (Staurppus, Staurppus alniaria) |
| entomol. | canary-shouldered thorn | Erlenspanner (Staurppus, Staurppus alniaria) |
| entomol. | canary-shouldered thorn | Birkenspanner (Staurppus, Staurppus alniaria) |
| agric. | Christ's thorn | Carnaubapalme (Copernicia cerifera, Copernicia prunifera) |
| bot. | Christ's thorn | Christusdorn |
| med. | Christy-Thorn function test | kombinierter Christy-Thorn Belastungstest |
| med. | Christy-Thorn function test | Christy-Thorn Belastungstest |
| nat.res. | common thorn-apple | gemeiner Stechapfel (Datura stramonium L.) |
| entomol. | early thorn moth | Mondspanner (Selenia bilunaria) |
| entomol. | early thorn moth | Mondfleckglucke (Cosmotriche lunigera) |
| entomol. | early thorn moth | Dreistreifiger Mondfleckspanner (Selenia bilunaria) |
| ichtyol. | fin thorn | Flossenstachel |
| ichtyol. | flapper thorn | Flossenstachel |
| ichtyol. | flipper thorn | Flossenstachel |
| med. | Frey thorn | Frey Borste |
| agric. | fruit of the sea buck thorn | Frucht des Sand- oder Sauer dornes |
| amp. | grapevine thorn | Geiztrieb der Rebe |
| amp. | grapevine thorn | Geiztrieb des Weinstockes |
| agric. | Hart's thorn | echter Kreuzdorn |
| gen. | He's a thorn in my side | Er ist mir ein Dorn im Auge |
| food.ind. | Jerusalem thorn | Jerusalemdorn (Parkinsonia aculeata) |
| bot. | Jerusalem thorn | Christusdorn |
| biol. | kangaroo thorn | Kängurudorn (Acacia armata) |
| entomol. | large thorn | Zackenspanner (Staurppus autumnaria) |
| entomol. | large thorn | Herbstspanner (Staurppus autumnaria) |
| entomol. | large thorn | Linden-Zackenrandspanner (Staurppus autumnaria) |
| entomol. | large thorn | Herbstlaubspanner (Staurppus autumnaria) |
| entomol. | lilac thorn moth | Fliederspanner (Phalaena syringaria) |
| entomol. | lunas thorn moth | Zweistreifiger Mondfleckspanner (Selenia lunaria) |
| entomol. | lunas thorn moth | Zweistreifiger Holzbirnenspanner (Selenia lunaria) |
| gen. | No rose without a thorn. | Keine Rose ohne Dornen. |
| entomol. | orange thorn moth | Schlehenspanner (Angerona prunaria) |
| entomol. | orange thorn moth | Pflaumenspanner (Angerona prunaria) |
| entomol. | purple thorn moth | Dunkelbrauner Mondfleckspanner (Selenia tetralunaria) |
| ornit. | purple-backed thorn-billed hummingbird | Kleinschnabelkolibri (Ramphomicron microrhynchum) |
| life.sc., environ., agric. | sallow thorn | Sanddorn (Hippophae rhamnoides) |
| gen. | sallow thorn | Sanddorn |
| entomol. | scalloped hazel thorn moth | Doppelzahnspanner (Gonodontis bidentata) |
| gen. | shallow-thorn berries | Sanddorn |
| entomol. | sulphur thorn | Gelber Weißdornspanner (Opisthograptis luteolata) |
| entomol. | sulphur thorn | Weißdornspanner (Opisthograptis luteolata) |
| entomol. | sulphur thorn | Gelbspanner (Opisthograptis luteolata) |
| med. | supporting thorn | Abstuetzungsdorn |
| agric. | thorn-apple | weißer Stechapfel |
| nat.res. | thorn apple | Datura stramonium |
| nat.res. | thorn-apple | gewöhnlicher Stechapfel (Datura Stramonium Lin., Datura stramonium L, Datura stramonium) |
| nat.res. | thorn apple | Stechapfel |
| nat.res. | thorn apple | Datura |
| agric. | thorn-apple | gemeiner Stechapfel (Datura stramonium) |
| gen. | thorn apple genus Datura | Stechapfel |
| gen. | thorn-apple | Stechapfel |
| agric. | thorn-apple | Stechapfel (Datura stramonium) |
| emerg.care | thorn apple | Stechapfel |
| med. | thorn-apple form | Stechapfelform |
| food.ind. | thorn-back spider crab | Teufelskrabbe (Maja squinado, Maia squinado) |
| food.ind. | thorn-back spider crab | Große Seespinne (Maja squinado, Maia squinado) |
| gen. | thorn bush | Dornbusch |
| ornit. | thorn-bush barred wren warbler | Damarabindensänger (Camaroptera fasciolata) |
| entomol. | thorn butterfly | Heckenweißling (Aporia crataegi) |
| entomol. | thorn butterfly | Baumweißling (Aporia crataegi) |
| tech. | thorn hedge | Dornenhecke |
| chem. | thorn-like | dornartig |
| med. | thorn-like | domförmig |
| med. | thorn-like | domartig |
| med. | thorn-like process | Dornfortsatz (spina) |
| med. | thorn-like process | Processus spinosus Grat (spina) |
| med. | thorn-like process | Stachel (spina) |
| med. | thorn-like process | Dorn (spina) |
| med. | Thorn manoeuvre | Thorn Handgriff |
| life.sc., fish.farm. | thorn sturgeon | Dick (Acipenser nudiventris) |
| life.sc., fish.farm. | thorn sturgeon | Glattdick (Acipenser nudiventris) |
| ornit. | thorn-tailed rayadito | Stachelschwanzschlüpfer (Aphrastura spinicauda) |
| gen. | wait-a-bit thorn Acacia mellifera, Black Thorn | Schwarzdorn-Akazie |
| nat.res. | white thorn | gemeiner Weißdorn (Crataegus monogyna, Crataegus oxyacantha, Crataegus(L.)Spec.) |
| biol. | white thorn | Weißdorn (Crataegus monogyna, Crataegus oxyacantha, Crataegus(L.)Spec.) |
| biol. | white thorn | eingriffeliger Weißdorn (Crataegus monogyna, Crataegus oxyacantha, Crataegus(L.)Spec.) |