ring

a toroidal shape; "a ring of ships in the harbor"; "a halo of smoke"

a rigid circular band of metal or wood or other material used for holding or fastening or hanging or pulling; "there was still a rusty iron hoop for tying a horse"

an association of criminals; "police tried to break up the gang"; "a pack of thieves"

the sound of a bell ringing; "the distinctive ring of the church bell"; "the ringing of the telephone"; "the tintinnabulation that so voluminously swells from the ringing and the dinging of the bells"--E. A. Poe

a platform usually marked off by ropes in which contestants box or wrestle

jewelry consisting of a circlet of precious metal (often set with jewels) worn on the finger; "she had rings on every finger"; "he noted that she wore a wedding band"

a strip of material attached to the leg of a bird to identify it (as in studies of bird migration)

sound loudly and sonorously; "the bells rang"

ring or echo with sound; "the hall resounded with laughter"

make (bells) ring, often for the purposes of musical edification; "Ring the bells"; "My uncle rings every Sunday at the local church"

get or try to get into communication (with someone) by telephone; "I tried to call you all night"; "Take two aspirin and call me in the morning"

extend on all sides of simultaneously; encircle; "The forest surrounds my property"