| |||
| Dutch clover (Trifolium repens); white clover (Trifolium repens) | |||
| cowslip (Primula officinalis Jacq., Primula officinalis L. Hill, Primula veris) | |||
| cuckoo (Cuculus) | |||
| |||
| cuckoo clock | |||
| |||
| cuculidae (Cuculidae) | |||
|
coucou : 98 phrases in 9 subjects |
| Agriculture | 1 |
| Entomology | 2 |
| Environment | 3 |
| General | 2 |
| Industry | 2 |
| Natural resourses and wildlife conservation | 25 |
| Natural sciences | 1 |
| Ornithology | 61 |
| Zoology | 1 |