公债券

public bond

public / collectively owned / common / international (e.g. high seas, metric system, calendar) / make public / fair / just / Duke, highest of five orders of nobility 五等爵位[wu3 deng3 jue2 wei4] / honorable (gentlemen) / father-in-law / male (animal)

government bond

debt / CL:筆|笔[bi3]

bond / debenture

bond (esp. document split in two, with each party holding one half) / contract / deed (i.e. title deeds) / ticket / voucher / certificate

variant of 券[quan4]