jabot
Decoration made up of one or two pieces of fine soft pleated fabric; it is attached at the base of the neck and spreads out over the chest.
sailor collar
Collar that is square in back and has long lapels extending over the chest; it is fastened to a V-neck and, out of modesty, the plunging neckline is often concealed with a piece of fabric.
bow collar
Collar made of a long strip of soft fabric sewn onto a round neck; it can be tied in front in various ways.
shawl collar
Wide turned-down collar with long rounded lapels that partially cross in front.
Peter Pan collar
Flat collar of uniform width with rounded tips; it is sewn onto a fairly open neck.
dog ear collar
Turned-down collar characterized by long, fairly wide points, which are rounded at the tips.
tailored collar
Collar whose fold covers the back of the neck; its lapels form a V where they cross on the chest.
shirt collar 
Collar with rounded or tapered points that is sewn onto the neck and turned down along a fold line, which is higher in back than in front.
Collar: piece sewn onto a garment that finishes or adorns the neck.
![examples of collars [3] image examples of collars [3]](http://visual.merriam-webster.com/images/clothing-articles/clothing/womens-clothing/examples-collars_3.jpg)
turtleneck
High-necked collar that is folded over; it is usually snug around the neck and does not fasten.
cowl neck
Turtleneck that is large enough to be draped over the head, making a kind of hood that frames the face.
polo collar
Turned-down pointed collar fastened with a buttoned placket, which ends at mid-chest.
stand-up collar
Collar made of a narrow strip of fabric that sticks up from a round neck; its edges meet in front but do not fasten.
mandarin collar
Stand-up collar with rounded upper points that come together at the neck, forming a V.
bertha collar
Collar made of a strip of fabric of variable width and attached to the edge of a neckline or round neck.