judiciary UK /ˌd͡ʒuːˈdɪʃəɹi/US /ˌd͡ʒuːˈdɪʃɪɛɹi/noun 2adjective 1forms 1 noun2 •The collective body of judges, justices, etc. •The court system, inclusive of clerical staff, etc.Compared with most Latin American courts, on paper the Argentine judiciary is among the most insulated high courts in the region. — 2004 adjective1 •Judicial. formsjudiciaries