1. A slit or opening in a garment, typically at the neckline or waistline, often finished with buttons or a zipper for fastening or ease of dressing.
Usage: Common in clothing construction and tailoring
2. A reinforced strip of fabric sewn around an opening in a garment to strengthen and finish the edges.
Usage: Technical term in sewing and garment manufacturing

Examples

• The dress had a button placket down the front for easy dressing.
• She carefully stitched the placket around the neckline opening.
• The shirt's placket was reinforced with extra stitching to prevent tearing.
• A zippered placket made the skirt more convenient to put on.
• The tailor finished the placket with a neat fold of fabric.
• The blouse featured a decorative placket with embroidered details.