N-VAR
（人、動物等的）圍長、腰圍
The girth of an object, for example a person's or an animal's body, is its width or thickness, considered as the measurement around its circumference.
例句
A girl he knew had upset him by commenting on his increasing girth.
他認識的一位女孩對他越來越粗的腰身說三道四，這讓他心里很不痛快。