<p><strong>Noun:</strong></p><ul><li>the measure around anything; circumference.</li><li>a band that passes underneath a horse or other animal to hold a saddle in place, especially one having a buckle at each end for fastening to straps running from under the flaps of the saddle.</li><li>something that encircles; a band or girdle.</li></ul><p><strong>Verb (used with object):</strong></p><ul><li>to bind or fasten with a girth.</li><li>to girdle; encircle.</li></ul>