1. A tuft of feathers on the top of a bird's head. English = crest.
2. A kind of parrot that has a crest on its head. English = cockatoo.
3. The red growth that a cock (rooster) has on its head. English = cockscomb.
4. A young person who dresses in a very noticeable and unconventional way, for example by having brightly coloured or spiked hair and wearing metal chains. English = punk.