a circular band usually of a precious metal, esp gold, often set with gems and worn upon the finger as an adornment or as a token of engagement or marriage

any object or mark that is circular in shape

a circular path or course

a group of people or things standing or arranged so as to form a circle

an enclosed space, usually circular in shape, where circus acts are performed

a square apron or raised platform, marked off by ropes, in which contestants box or wrestle

the field of competition or rivalry

a group of people usually operating illegally and covertly

(esp at country fairs) an enclosure, often circular, where horses, cattle, and other livestock are paraded and auctioned

an area reserved for betting at a racecourse

a circular strip of bark cut from a tree or branch, esp in order to kill it

a single turn in a spiral

the area of space lying between two concentric circles

a set that is subject to two binary operations, addition and multiplication, such that the set is an Abelian group under addition and is closed under multiplication, this latter operation being associative

a closed loop of atoms in a molecule

any of the thin circular bands of small bodies orbiting a giant planet, esp Saturn

to surround with, or as if with, or form a ring; encircle

to mark (a bird) with a ring or clip for subsequent identification

to fit a ring in the nose of (a bull, pig, etc) so that it can be led easily

to be the fastest shearer in (a shearing shed), esp in the phrase ring the shed)