| Neopenis | neopenis |
| Neotenie | neoteny |
| Neogen | Neogene |
| Neopren | neoprene |
| Tierpenis | pizzle |
| neppen | rip |
| Penis | penis cock dick prick |
| serpens | advancing creeping serpent-like serpiginous |
| Neophilie | neophilia |
| Neophobie | neophobia |
| Neoplasie | neoplasm |
| Neokelte | neocelt |
| Neon | neon |
| Neonazi | neo-Nazi |
| Neophyt | neophyte invasive plant |
| Osteopenie | osteopenia |
| Alopezie | alopecia |
| Köpenick | Köpenick |
| Propen | propene |
| Tropen | tropics |