■ noun
1》 a round plane figure whose boundary consists of points equidistant from the centre.
↘a group of people or things forming a ~.
2》 a curved upper tier of seats in a theatre.
3》 a group of people with a shared profession, interests, or acquaintances.
■ verb move or be situated all the way around.
↘draw a line around.
Phrases
~ the wagons N. Amer. informal unite in defence of something. [with ref. to the defensive position of a wagon train under attack.]
come (or turn ) full ~ return to a past position or situation.
go (or run ) round in ~s informal do something for a long time without achieving anything.
Origin
OE, from OFr. cercle , from L. circulus 'small ring', dimin. of circus 'ring'.