1 piece of jewellery
ADJ. engagement, eternity, signet, wedding | diamond, gold, etc. She wore a diamond engagement ring.
VERB + RING have on, wear He had a signet ring on his little finger. | put on | take off
RING + NOUN finger (= the finger next to the little finger, especially on the left hand)
ADJ. inner | outer | concentric The street plan of the city has evolved as a series of concentric rings. | black, dark He had dark rings around his eyes. | smoke, tree to blow smoke rings
VERB + RING form, stand in The children formed a ring around their teacher.
PREP. in a/the ~ The children sat on the floor in a ring.
3 where a performance, match, etc. takes place
ADJ. boxing, bull, circus, show, wrestling
PREP. in/into the ~ He was back in the ring (= the boxing ring) only a month after the injury.
PHRASES retire from the ring (= stop boxing)
4 people involved in sth secret/illegal
ADJ. drugs, smuggling, spy
VERB + RING be involved in | break up Customs officials have broken up a major drugs ring.
5 telephone call
VERB + RING give sb I'll give you a ring once I get home.