hilt
noun [ C ] uk/hɪlt/ us/hɪlt/
（锋利武器的）柄
the handle of a sharp-pointed weapon such as a sword
Idiom
(up) to the hiltidiom 完全地，彻底地
Something that is done (up) to the hilt is done completely and without any limits
The government is already borrowing up to the hilt. 政府已经完全靠借贷度日了。