Meaning

noun ellipse in which the two axes are of equal length; a plane curve generated by one point moving at a constant distance from a fixed point

noun an unofficial association of people or groups

noun something approximating the shape of a circle

originEtymology tree Proto-Indo-European *(s)ker-der. Ancient Greek κίρκος (kírkos)bor. Latin circus Proto-Indo-European *-lós Proto-Indo-European *-elós Proto-Italic *-elos Latin -ulus Latin circulus Old French cerclebor. Middle English circle English circle From Middle English circle, cercle, from Old French cercle and Latin circulus, diminutive of Latin circus (“circle, circus”), from Ancient Greek…

Etymology from Wiktionary, CC BY-SA 3.0