EGG

an oval or round object laid by a female bird, reptile, fish, or invertebrate, usually containing a developing embryo. the eggs of birds are enclosed in a chalky shell, while those of reptiles are in a leathery membrane.

the female reproductive cell in animals and plants; an ovum.

a decorative oval moulding, used alternately with triangular shapes

a person of a specified kind

encourage someone to do something foolish or risky