What is another word for "bob"?

Roget's Thesaurus (1911) lists these synonyms for "bob": abase, abasement, about, agitation, amusement, ance, and, bend, bounce, bound, bow, bring, buck, caper, capriole, caracole, cast, chamois, concavity, couch, courtesy, cower, crouch, curtsy, curvet, cut, dance, dash, debase, demivolt, depress, depressed, depression, detrude, detrusion, dip, down, drop, duck, dust.