| helical | helicoidal |
| Helicase | Helicasa |
| Helichrysum | Helichrysum |
| Helichrysum arenarium | Helichrysum arenarium |
| Helicity | Helicidad |
| Helicobacter | Helicobacter |
| Helicobacter pylori | Helicobacter pylori |
| Heliconia | Heliconia |
| helicopter | helicóptero |
| Helicoverpa armigera | Helicoverpa armigera |
| Helictotrichon | Helictotrichon |
| Heligoland | Heligoland |
| Heliobacteria | Heliobacteria |
| Heliocentric correction | Corrección heliocéntrica |
| Heliocentric julian date | Fecha juliana heliocéntrica |
| Heliocentric orbit | Órbita heliocéntrica |
| Heliocentric velocity | Velocidad heliocéntrica |
| Heliocentrism | Teoría heliocéntrica |
| Heliodorus | Heliodoro |
| Heliodorus of Emesa | Heliodoro |
| heliograph | heliógrafo |
| Helion | Helión |
| Heliopolis | Heliópolis |
| Heliornithidae | Heliornithidae |
| Helios | Helios |
| Helios probes | Helios |
| Helioseismology | Heliosismología |
| Heliosheath | Heliosfera |
| heliotrope | heliotropo |
| Heliotropium | Heliotropium |
| Heliozoa | Heliozoa |
| heliport | helipuerto |
| helium | helio |
| Helium burning | Fusión del helio |
| Helium flash | Ignición del helio |
| Helium shell flash | Ignición de la capa de helio |
| helix | hélice |
| Helix aspersa | Helix aspersa |
| Helix Nebula | Nebulosa de la Hélice |
| Heliópolis | Heliópolis |
| hell | infierno |
| Hell Girl | Jigoku Shōjo |
| Hell in the Pacific | Hell in the Pacific |
| Hell of a Collection | Hell of a Collection |
| Hell of a Tester | Hell of a Tester |
| Hella Haasse | Hella Haasse |
| Hellanicus of Lesbos | Helánico de Lesbos |
| Hellas | Grecia |
| Hellas Planitia | Hellas Planitia |
| Hellboy | Hellboy |
| Helle Thorning-Schmidt | Helle Thorning-Schmidt |
| Helleborus foetidus | Helleborus foetidus |
| Helleborus lividus | Helleborus lividus |
| Hellen | Héleno |
| Hellenic | Habitante de Grecia |
| Hellenic calendar | Calendario helénico |
| Hellenic Football Federation | Federación Helénica de Fútbol |
| Hellenic neopaganism | Dodecateísmo |
| Hellenic Parliament | Parlamento Helénico |
| Hellenic polytheism | Dodecateísmo |
| Hellenic Republic | Grecia |
| Hellenism | helenismo |
| Hellenistic art | Arte helenístico |
| Hellenistic civilization | Helenístico |
| Hellenistic Greece | Período helenístico |
| Hellenistic period | Período helenístico |
| Hellenistic philosophy | Período helenístico |
| Hellensitic civilization | Helenístico |
| Helles | Hela |
| Helliniko Olympic Complex | Complejo Olímpico Helliniko |
| hellish | diabólico |
| hello | ruego |
| Hello Kitty | Hello Kitty |
| Hello world program | Hola mundo |
| Helloween | Helloween |
| Hells Angels | Los ángeles del infierno |
| Hellsing | Hellsing |
| Hellsing Organization | Caballeros Protestantes Reales |
| Hellsing Ultimate | Hellsing |
| helm | volante |
| Helm Hammerhand | Helm |
| Helmand | Hilmand |
| Helmand Province | Hilmand |
| Helmand River | Helmand |
| helmet | casco |
| Helmet plate | Blasón |
| helmeted | con casco |
| Helmeted gecko | Tarentola chazaliae |
| Helmeted Guineafowl | Numida meleagris |
| Helmholtz equation | Ecuación de Helmholtz |
| Helmholtz resonance | Absorbente Helmholtz |
| Helms-Burton Act | Ley Helms-Burton |
| helmsman | timonel |
| Helmstedt | Distrito de Helmstedt |
| Helmut Kohl | Helmut Kohl |
| Helmut Koinigg | Helmuth Koinigg |
| Helmut Newton | Helmut Newton |
| Helmut Schmidt | Helmut Schmidt |
| Helmut Wick | Helmuth Wick |
| Helmuth Duckadam | Helmuth Duckadam |
| Helmuth James Graf von Moltke | Helmuth von Moltke |
| Helmuth Koinigg | Helmuth Koinigg |
| Helmuth von Moltke | Helmuth von Moltke |
| Helmuth von Moltke the Elder | Helmuth von Moltke |
| Helmuth von Moltke the Younger | Helmuth Johan von Moltke |
| Helmuth Weidling | Helmuth Weidling |
| Heloderma | Heloderma |
| Heloise | Eloísa |
| Helorus | Heloros |
| Helots | Hilota |
| help | aprovechar |
| help out | ayudar |
| help someone out | apoyar a alguien |
| helper | ayudante |
