1. the band of fabric at the top of a skirt, pants, or other garment that fits around the waist

Examples

• The waistband of my jeans is too tight after the holidays.
• She adjusted the elastic waistband on her sweatpants.
• The skirt has a wide waistband that sits at the natural waist.
• He tucked his shirt into the waistband of his trousers.
• The waistband stretched comfortably around her waist.
• These pants have a drawstring waistband for a better fit.