The girth of something is the distance around its middle, and it usually refers to a person’s waist. If you get pregnant with twins, your girth will probably block your view of your toes.

One can measure the girth — diameter of the mid-section — of an airplane, tree trunk, or anything cylindrical, but it most often describes a large human waist. A rail-thin person doesn’t have a “minuscule girth,” but when Aunt Velma has her seventh helping of lasagna and has to unbuckle her belt, her girth has outsized her attire. Girth can also mean a strap that encircles the belly of a horse, mule, or other animal to secure a load.

Definitions of girth

n the distance around a person's body

the expansion of a person's girth (especially at middle age)
Type of:
circumference, perimeter
the size of something as given by the distance around it

n stable gear consisting of a band around a horse's belly that holds the saddle in place

Type of:
saddlery, stable gear, tack
gear for a horse

v tie a cinch around

Type of:
fasten, fix, secure
cause to be firmly attached

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