n. 25B6; noun
a ring round the moon : CIRCLE, band, halo, disc.
she wore a ring : WEDDING RING, band.
a circus ring : ARENA, enclosure, field, ground; amphitheatre, stadium.
a ring of onlookers : CIRCLE, group, knot, cluster, bunch, band, throng, crowd, flock, pack.
a spy ring : GANG, syndicate, cartel, mob, band, circle, organization, association, society, alliance, league, coterie, cabal.
25B6; verb police ringed the building : SURROUND, circle, encircle, encompass, girdle, enclose, hem in, confine, seal off.