ad.

1. 【书】因此；由此
   This is a gold necklace, hence it is expensive.

   这是根金项链，因此很贵。

2. 【书】从现在；从这时起；从此
   The railroad will open at the end of the decade, two years hence.

   这条铁路本世纪末通车，离现在还有两年时间。

3. 【书】从今世；从此生
   go/depart hence

   去世

4. 【书】从这地方；离此地

adv.

1. as a consequence; for this reason.
2. from now; in the future.
3. (also from hence) archaic from here.