examples of collars [1]
Collar: piece sewn onto a garment that finishes or adorns the neck.
collar 
Piece sewn onto a garment that finishes or adorns the neck.
stand 
Top edge of the break line, where the collar turns.
lapel 
Part of a garment turned down over the chest, extending the collar.
break line 
Line where the collar folds.
roll 
Inside of the collar, behind the neck.
leading edge 
Folded part of the fabric that runs along the collar.
notch 
Angle formed where the collar and the lapel meet.
collar point 
Somewhat pointed tip of the collar.
fall 
Part of the collar that folds back over the garment from the break line.