Lingerie in modern parlance refers to fashionable and often alluring undergarments worn by women. Typically the design will be more exotic/risque, accentuated with pronounced decorative (lace or frill) trim, or is made out of special fabrics, such as silk, which may or may not be sheer.
Most undergarment tags are not set to imply lingerie. It should be manually applied by the appearance of the undergarment(s) as above, and perhaps according to the situation by which they are revealed, not ubiquitously tagged with the mere appearance of panties or flashed bra worn for everyday purposes. For these undergarments and more, see underwear.