Treasury bond
noun [ C ] uk/ˈtreʒ.ər.i ˌbɒnd/ us/ˈtreʒ.ɚ.i ˌbɑːnd/
（美国的）长期国库券
an official US document showing that someone has lent money to the US government that will be paid back after ten years and on which interest will be paid twice a year