waist

n. part of the body between the hips and ribs; part of a garment that surrounds the midsection of the body; garment reaching from the shoulders to the waist; blouse, shirt; narrow middle part of an object (as of a violin)

The waist is the part of the abdomen between the ribcage and hips. On some people, the waist is the narrowest part of the torso.Waistline refers to the horizontal line where the waist is narrowest, or to the general appearance of the waist. People who diet are often said to be trying to "improve" their waistline.Women tend to have narrower waists than men.
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Waist the portion of the body between the thorax and the hips. waist n. 1. The part of the human trunk between the bottom of the rib cage and the [more]Waist - Community and Resources

Noun
1. the narrowing of the body between the ribs and hips
(synonym) waistline
(hypernym) area, region
(hyponym) wasp waist
(part-holonym) torso, trunk, body
2. the narrow part of the shoe connecting the heel and the wide part of the sole
(synonym) shank
(hypernym) part, portion
(part-holonym) sole

(n.)
That part of the human body which is immediately below the ribs or thorax; the small part of the body between the thorax and hips.
  

(n.)
Hence, the middle part of other bodies; especially (Naut.), that part of a vessel's deck, bulwarks, etc., which is between the quarter-deck and the forecastle; the middle part of the ship.
  

(n.)
A girdle or belt for the waist.
  

(n.)
A garment, or part of a garment, which covers the body from the neck or shoulders to the waist line.