n. 1 extra, addition, adjunct, attachment, component, frill, Slang bells and whistles, doodah, US and Canadian doodad My food processor has more accessories than I could ever need 2 accessary, accomplice, helper, assistant, confederate, colleague, abettor, aide, collaborator, co-conspirator, conspirator, fellow-criminal, associate or partner in crime Although he did not rob the bank, he drove the getaway car, which legally makes him an accessory before the fact A seller of stolen goods is an accessory after the fact.
adj. 3 extra, subordinate, auxiliary, additional, ancillary, supplemental, supplementary, secondary, adventitious, Formal adscititious For no apparent reason, the salamander grew an accessory limb near its hind leg