貢士gòng shì(old) candidate who has successfully passed the first grades of the examination system, but not yet the court examination (殿試|殿试[dian4 shi4])
進貢jìn gòngto present tribute (to a suzerain, the emperor etc)
朝貢cháo gòng(of a vassal state, neighboring country etc) to present tribute (to the imperial court)