cicus

　　1.a travelling company of entertainers; including trained animals;

　　he ran away from home to join the circus

　　2.performance given by a traveling company of acrobats clowns and trained animals;

　　the children always love to go to the circus

　　3.a frenetic disorganized (and often comic) disturbance suggestive of a circus or carnival;

　　it was so funny it was a circus

　　4.(antiquity) an open-air stadium for chariot races and gladiatorial games

　　5.an arena consisting of an oval or circular area enclosed by tiers of seats and usually covered by a tent;

　　they used the elephants to help put up the circus