|Origin:||'circle, circus', perhaps from Greek kirkos 'ring'|
a group of people and animals who travel to different places performing skilful tricks as entertainment
circus act (=a trick performed in a circus)
circus ring (=a large circular area where tricks are performed)
2 [singular] informal
a situation in which there is too much excitement or noise:
The first day of school is always such a circus.
The trial has turned into a media circus.
3 [countable usually singular] British EnglishTTR
a round open area where several streets join together, often used in place names:
a place in ancient Rome where fights, races etc took place, with seats built in a circle