1 When the sun goes down, it moves down in the sky until it cannot be seen any more. -- tramontare
2 (with well/badly) to be approved or disapproved of -- essere accolto bene/male
The story went down well (with them).
3 (of a ship) to sink -- affondare
4 (of the sun or moon) to go below the horizon -- tramontare
5 to be remembered -- passare alla storia