Pronunciation: /əˈpɑn/
preposition Upon is a preposition that indicates a position on top of or in contact with something.
A1 I put the book upon the table.
A2 Upon arriving at the airport, she realized she forgot her passport.
B1 Upon hearing the news, he immediately called his family.
B2 The decision was made upon careful consideration of all the facts.
C1 Upon completion of the project, a detailed report was submitted.
C2 The success of the business was built upon years of hard work and dedication.
formal Upon further investigation, it was revealed that the company had been involved in fraudulent activities.
informal I stumbled upon a really cool bookstore while exploring the city.
slang I can't believe she ghosted me right upon meeting her in person.
figurative Upon hearing the news, she felt a weight lifted off her shoulders.
upon
upons
more upon
most upon
upon
will upon
have upon
am upon
upon
upon
to upon
upon
uponing