the measure around anything; circumference.

a band that passes underneath a horse or other animal to hold a saddle in place, esp. one having a buckle at each end for fastening to straps running from under the flaps of the saddle.

something that encircles; a band or girdle.

to bind or fasten with a girth.

to girdle; encircle.

noun

circumference , distance around , bigness , compass , waist measure , expansion , strap , cinch , surcingle