Crest

n.

1. a. A usually ornamental tuft, ridge, or similar projection on the head of a bird or other animal. b. An elevated, irregularly toothed ridge on the stigmas of certain flowers. c. A ridge or an appendage on a plant part, such as on a leaf or petal.

2. a. A plume used as decoration on top of a helmet. b. A helmet.

3. a. Heraldry A device placed above the shield on a coat of arms. b. A representation of such a device.

4. a. The top, as of a hill or wave. b. The highest or culminating point; the peak: the crest of a flood; at the crest of her career.

5. The ridge on a roof.