chain, n. concatenation, catenation, series, congeries, carcanet, catena, chatelaine, necklace, gorget, links, torque; [bond], [shackle], [fetter], tether.
chain, v. [fetter], [restrain], [shackle], [enslave], trammel, catenate.
chain wheel. sprocket [wheel].
chair, n. [seat]; professorship; chairman.
chalice, n. grail.
chalk, n. Associated words: calcography, calcographer, calcographic, chalkiness, crayon.
chalkstone, n. tophus. (Med.)
chalky, a. cretaceous.
challenge, v. [defy], [dare], [brave].--n. [defiance]; exception, [objection].
champion, n. [defender], [vindicator], [protector], paladin; winner, hero, [conqueror].