Known as the brim
a party hat has i edge which is the top
brim
cap and gown. the hat is called a mortarboard.
a leperchaun's hat :P
It's called a homburg hat
Edges are called "bordes" in Spanish.
Its called a hat box
According to Irish folklore, it's called a cocked hat.
A guardsman hat is called 'Bear Skin'
Its called a Tri-Corn Hat
a pilgrim hat is called a pilly hat
a hat is called 'un chapeau' (masc.) in French.