| Zirkular | circular letter |
| zirka | approximate |
| Zirkel | compass pair of compasses circle |
| Zirkus | circus |
| zirkumpolar | circumpolar |
| Okular | eyepiece ocular |
| okular | ocular |
| binokular | binocular |
| muskulär | muscular |
| säkular | secular |
| vaskular | vascular |
| vaskulär | vascular |
| Kartular | cartulary |
| zellulär | cellular |
| Formular | form |
| Singular | singular |
| singulär | singular unique rare |
| Zarzuela | zarzuela |
| Eiklar | albumen egg white |
| Zirkulieren | circulation |
| zirkulieren | circulate |