| Osteria | osteria |
| Ostlerin | Oriental |
| Osterei | Easter egg |
| Ostern | Easter Passover |
| Ostertag | Easter Day |
| Stevia | stevia |
| Asterix | Asterix |
| steril | sterile |
| Oskerin | Oscan |
| Ostasiat | East Asian |
| Ostende | Ostend |
| Osterlamm | Paschal Lamb |
| Ostler | Oriental |
| Ostrau | Ostrava |
| Ostrava | Ostrava |
| osteo- | osteo- |
| Ostafrika | East Africa |
| Osten | east |
| Osterhase | Easter Bunny |
| Osterzeit | Easter |