upon

US /əˈpɑːn/
UK /əˈpɑːn/
"upon" picture
1.

di atas, pada

more formal term for on, especially in abstract senses

:
The decision was based upon careful consideration.
Keputusan itu berdasarkan atas pertimbangan yang teliti.
He placed the book upon the table.
Dia meletakkan buku itu di atas meja.
2.

setelah, apabila

indicating a time immediately or very soon after something

:
Upon arrival, please report to the front desk.
Setibanya, sila lapor diri di kaunter hadapan.
He started crying upon hearing the news.
Dia mula menangis setelah mendengar berita itu.