#neckline  the line formed by the edge of a garment around the neck
  supertype:  neck  opening for the neck; the part of a garment near the neck opening
  part of:  blouse  dress  sweater
  subtype:  crew_neck__crew_neckline  a plain straight neckline opening from shoulder to shoulder of sweaters
  subtype:  decolletage  a low-cut neckline on a woman's dress

No statement uses or specializes neckline; click here to add one.