| Hypoxie | hypoxia hypoxaemia oxygen deficiency oxygen depletion |
| Hyphe | hypha |
| Hypogamie | hypogamy |
| Hypotaxis | hypotaxis |
| Hype | hype |
| Hyperopie | hyperopia |
| Hypnose | hypnosis |
| Hypokrit | hypocrite |
| Hyponym | hyponym |
| Hyponymie | hyponymy |
| Hypotaxe | hypotaxis |
| Hypothek | mortgage |
| Hypotonie | hypotension hypotonia hypotonicity |
| hypo- | hypo- |
| Epoxid | epoxid |
| Hydroxid | hydroxide |
| Chypre | chypre |
| Hypnos | Hypnos |
| Hypotheka | hypotheca |
| Hyperbel | hyperbola |