neck

cowl neck 

the neck on a piece of clothing that falls in folds at the front 

 

 crew neck

a plain round neck on a sweater or shirt, or a sweater or shirt with this type of neck 

  

polo neck  

a shirt or sweater that has a high collar that folds down and fits closely around the neck = turtleneck American English 

  

scoop neck 

a round, quite low neck on a woman's  

 

V-neck 

an opening for the neck in a piece of clothing, shaped like the letter V 

 

open-necked 

an open-necked shirt is worn with the top button undone 

 

stiff-necked 

too proud, and refusing to change or obey = stubborn