1. the size of something as given by the distance around it (Freq. 1) • Syn: perimeter • Hypernyms: size • Hyponyms: girth 2. the boundary line encompassing an area or object - he had walked the full circumference of his land - a danger to all races over the whole circumference of the globe • Syn: circuit • Derivationally related forms: circumferential, circumferent • Hypernyms: boundary line, border, borderline, delimitation, mete 3. the length of the closed curve of a circle • Hypernyms: length • Part Meronyms: sextant, straight angle
