Upon

/əˈpɒn/ prep

prep ·Moderate ·High school level

Meaning at a glance

  • Primary sense: A higher-register or more formal alternative to on in most, though not all, prepositional uses.
  • Grammar: upon is listed as prep.
  • Nearest alternatives: about, above, act on impulse, administer to.
  • Useful contrasts: after, away from, before.
  • Usage evidence: You must not look upon him as great.

How to use "upon"

  1. Start with the primary definition, then check the part of speech before placing the word in a sentence.
  2. Compare nearby synonyms to make sure "upon" carries the exact meaning, tone, and strength you need.
  3. Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.

Meaning check

  • Does the word fit the sentence's grammar?
  • Does it match the intended tone rather than only the dictionary definition?
  • Would a simpler synonym be clearer for the reader?
  • Is there enough surrounding context to prevent ambiguity?

Source and review context

This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "upon" in a final draft.

If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.

Before you rely on this definition

Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "upon" as the right word for your sentence.

If your draft is formal, technical, persuasive, or sensitive, compare "upon" with a nearby alternative so the final choice matches both meaning and reader expectation.

Compare nearby meanings

  • Use synonyms when you need a softer, stronger, simpler, or more specific word.
  • Use antonyms to check the boundary of the meaning and avoid accidental contrast.
  • Use the example sentence to confirm the word behaves naturally in context.
  • Keep the original wording when a replacement adds complexity without improving precision.

Definition decision workflow

1. Identify the role

Check whether "upon" is acting as prep in your sentence. A definition is only useful when the grammar matches the way the word is being used.

2. Test the nearest option

Compare it with "about" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.

3. Confirm with context

Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.

Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.

Final meaning check

Before publishing a sentence with "upon", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.

When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.

Definitions

Preposition
  1. 1
    A higher-register or more formal alternative to on in most, though not all, prepositional uses.

    "A vase of flowers stood upon the table. — The painting hangs upon the wall. — All of the responsibility is upon him. — She plays upon a violin (or piano). — The lighthouse that you can see is upon the mainland. — He rested upon his elbows. — Tug upon the rope; push hard upon the door! — I stubbed my toe upon an old tree stump. — He wore old shoes upon his feet. — Born upon the 4th of July. — I have no opinion upon this subject. — They proceeded to arrest someone upon suspicion of bribery. — Upon Jack's entry, William got up to leave. — Before we knew it, the forest was upon us, and the air grew colder and damper. — What will be the effect upon morale? — Have pity or compassion upon him. — They lived upon ten dollars a week. — We ate heaps upon heaps of food. — I depended upon them for assistance. — He affirmed or promised upon his word. — Upon my life, I am innocent. — A curse upon him!"

Synonyms

All synonyms
aboutaboveact on impulseadminister toafter whichagainst

Antonyms

Example

"You must not look upon him as great."

Common questions

What does "upon" mean?

A higher-register or more formal alternative to on in most, though not all, prepositional uses.

What is a synonym for "upon"?

Common synonyms include: about, above, act on impulse, administer to, after which, against.

How do you use "upon" in a sentence?

You must not look upon him as great.

How do you pronounce "upon"?

Pronounced /əˈpɒn/.

Etymology

From Middle English upon, uppon, uppen, from Old English upon, uppon, uppan (“on, upon, up to, against, after, in addition to”), equivalent to up (“adverb”) + on (“preposition”). Cognate with Old Saxon uppan (“upon”), Old High German ūfan, ūffan (“upon”), Icelandic upp á, upp á (“up on, upon”), Swedish uppå (“up on, upon”) (thence Swedish på), Danish på (“up on, upon”), Norwegian på (“up on, upon”).

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