The meaning of UPON is on. How to use upon in a sentence.

Upon can be used to show that something happens soon after, and often because of, something else:

You use upon when mentioning an event that is followed immediately by another event.

(əˈpɒn, əˈpɔn) prep. 1. up and on; upward so as to get or be on. 2. in an elevated position on: a flag upon the roof. 3. in or into complete or approximate contact with: The enemy was upon us. …

in or into complete or approximate contact with, as an attacker or an important or pressing occasion: The enemy was upon us and our soldiers had little time to escape.

Nov 18, 2025 · A somewhat elevated word, "upon" is used mostly in literary, poetic or legal contexts, and may seem out of place in everyday language.

UPON definition: up and on; upward so as to get or be on. See examples of upon used in a sentence.

upon meaning, definition, what is upon: used to mean ‘on’ or ‘onto’: Learn more.

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UPON meaning: 1 : on; 2 : used to say that someone or something is very close or has arrived