Word.ws English Dictionary

act upon

act upon verb: to take action on the basis of information received or deduced.

Verb

act upon (third-person singular simple present acts upon, present participle acting upon, simple past and past participle acted upon)

  1. To take action on the basis of information received or deduced.
    • The policeman decided to act upon the informant's phone call.
    • NR had carried out risk assessments in 2002, identifying potential dangers with the crossing and recommending the installation of automatic locking gates. But this was not acted upon. In 2007, following the tragic deaths of Charlotte and Olivia, NR erected a footbridge and installed locking gates...2023 November 1, Ian Prosser talks to Stefanie Foster, “Safety Mission: Possible”, in RAIL, number 995, page 36

Forms of act upon

third-person singular presentacts upon
present participleacting upon
past participleacted upon
pastacted upon

Questions about act upon

What does act upon mean?
Act upon means to take action on the basis of information received or deduced.
What part of speech is act upon?
Act upon is a verb.
What is the past tense of act upon?
The past tense of act upon is acted upon.

Words near act upon in the dictionary

  1. act the hypocrite
  2. act the jennet
  3. act the jinnet
  4. act the maggot
  5. act up
  6. act upon
  7. act.
  8. ACTA
  9. actabilities
  10. actability
  11. actable

Source and license

Adapted from Wiktionary: act upon (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “act upon.” Word.ws, https://word.ws/act_upon. Based on Wiktionary, CC BY-SA 4.0.