| Canis lupus | |
| Canis lupus familiaris | |
| Capreolus capreolus | |
| Cavia porcellus | |
| Centaurea cyanus | |
| Cephalopoda | |
| Ces | |
| Cinnamomum camphora | |
| Cis | |
| Citrus | |
| Citrus aurantifolia | |
| Citrus medica | |
| Cochlearia wasabi | |
| Coelodonta antiquitatis | |
| Compositae | |
| Coriandrum sativum | |
| Corvus corax | |
| Corvus monedula | |
| Corylus avellana | |
| Coturnix coturnix | |
| Cu | |
| Cuculus canorus | |
| Cyanobacteria | |
| Cyclopterus lumpus | |
| Cyprinus carpio | |
| D | |
| D♭ | |
| D♯ | |
| Danaus plexippus | |
| Delphinapterus leucas | |
| Des | |
| Desmodus rotundus | |
| Dis | |
| Drosophila melanogaster | |
| E | |
| E♭ | |
| E♯ | |
| Eichhornia crassipes | |
| Eis | |
| Elaeagnus | |
| Emberizidae | |
| Enhydra lutris | |
| Equidae | |
| Equus asinus | |
| Equus caballus | |
| Equus hemionus | |
| Erithacus rubecula | |
| Es | |
| Eutrema japonica | |
| F | |
| Multiple languages |