Pronunciation: /əˈpɑn/

Definitions of upon

preposition Upon is a preposition that indicates a position on top of or in contact with something.

Example Sentences

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.

Examples of upon in a Sentence

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.

Grammatical Forms of upon

past tense

upon

plural

upons

comparative

more upon

superlative

most upon

present tense

upon

future tense

will upon

perfect tense

have upon

continuous tense

am upon

singular

upon

positive degree

upon

infinitive

to upon

gerund

upon

participle

uponing

Origin and Evolution of upon

First Known Use: 1250 year
Language of Origin: Old English
Story behind the word: The word 'upon' originated from Middle English, derived from the Old English preposition 'uppan' meaning 'up'
Evolution of the word: Over time, the word 'upon' has retained its basic meaning of indicating a position above or on top of something, but its usage has expanded to also convey a sense of immediacy or close proximity in modern English.