[noun] [C] - the part of the body above and slightly narrower than the hipsa small/narrow/tiny/large/thick waistThe trousers are a bit tight around my waist.The waist of a piece of clothing is the part that goes around or covers this area of the body.The skirt had an elasticated waist.Waist pack is US for bumbag.
WAIST
Meaning of WAIST in English
Cambridge English vocab. Кембриджский английский словарь. 2012