One very common type of hat is a fitted cap, usually with some sort of symbol or sports team; sometimes a work logo.
A white one
A winged one.
A hard one
The color black for a hat is and will always be the most popular hat for men.
type of hat worn by witches
depends on the type, e.g. yes if its a baseball hat or stocking type... no if it s a complex elaborated one often hold with hairpins etc
NO!!! 'Hat' is a concrete common noun, because it is an object you can hold .
fedora hat
Raccoon hat
· derby hat
yes
Perhaps...hat.