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inform

1 American  
[in-fawrm] / ɪnˈfɔrm /

verb (used with object)

  • informs,
    present (3rd person singular)
  • informed,
    past participle,  past
  • informing
    present participle
  1. to give or impart knowledge of a fact or circumstance to.

    He informed them of his arrival.

    Synonyms:
    tell, advise, notify, apprise
  2. to supply (oneself) with knowledge of a matter or subject.

    She informed herself of all the pertinent facts.

    Synonyms:
    acquaint
  3. to give evident substance, character, or distinction to; pervade or permeate with manifest effect.

    A love of nature informed his writing.

  4. to animate or inspire.

  5. Obsolete.

    1. to train or instruct.

    2. to make known; disclose.

    3. to give or impart form to.


verb (used without object)

  • informs,
    present (3rd person singular)
  • informed,
    past participle,  past
  • informing
    present participle
  1. to give information; supply knowledge or enlightenment.

    a magazine that entertains more than it informs.

verb phrase

  1. inform on to furnish incriminating evidence about (someone) to an authority, prosecuting officer, etc..

    He informed on his accomplices.

inform 2 American  
[in-fawrm] / ɪnˈfɔrm /

adjective

Obsolete.
  1. without form; formless.


inform 1 British  
/ ɪnˈfɔːm /

verb

  1. (tr; often foll by of or about) to give information to; tell

  2. (tr; often foll by of or about) to make conversant (with)

  3. (intr; often foll by against or on) to give information regarding criminals, as to the police, etc

  4. to give form to

  5. to impart some essential or formative characteristic to

  6. (tr) to animate or inspire

  7. obsolete (tr)

    1. to train or educate

    2. to report

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

inform 2 British  
/ ɪnˈfɔːm /

adjective

  1. archaic without shape; unformed

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Inflected Forms

Participles

Conjugated Forms

Present

Past

Future


Etymology

Origin of inform1

First recorded in 1350–1400; Middle English enfo(u)rmen, informen, from Old French enfo(u)rmer, from Latin infōrmāre “to form, shape,” equivalent to in- in- 2 + fōrmāre “to form ”

Origin of inform2

First recorded in 1545–55; from Latin informis “formless, deformed,” equivalent to in- in- 3 + -formis -form


Explanation

To inform is to tell someone news, pass on wisdom, leak gossip, or give instruction. You've been informed that you won the raffle at the county fair. What are you going to do with all that cheese? The Latin verb infōrmāre means "to form or shape." The idea of passing on knowledge came about in the 14th Century, with the meaning of "teaching or instructing" coming later. Thomas Jefferson, who believed democracy to be impossible without informed citizens, said, “Educate and inform the whole mass of the people... They are the only sure reliance for the preservation of our liberty.”

Keep Reading on Vocabulary.com

Vocabulary lists containing inform

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Shoppers, often from profiles with traditionally male names, would inform me that a supermarket had apparently run out of tomatoes in every conceivable form.

From Salon ● Oct. 25, 2026

She said fitness apps have added a competitive element to "inform and advise" people in a way that could not be done a decade ago, but this can lead to compulsive behaviour disorder.

From BBC ● Oct. 23, 2026

The chef’s influence will extend beyond the communal dining areas and into the residences themselves, with his vision helping inform the design of the in-home kitchens.

From MarketWatch ● Oct. 23, 2026

Ten days later, the Netflix executive emailed Afram’s team to inform them that the drive containing “Fortitude” had been stolen, according to the producer’s suit.

From The Wall Street Journal ● Oct. 22, 2026

Instead Brother Zesht seemed to be counting the men with him, to better inform Samir of the right number of free things to give them.

From "The Many Assassinations of Samir, the Seller of Dreams" by Daniel Nayeri

The past informs both the present and the future.

From Salon ● Oct. 28, 2026

So of course that informs a lot of my decision-making and the work I do.”

From Los Angeles Times ● Oct. 27, 2026

A full diagnostic panel informs every guest’s customized itinerary.

From The Wall Street Journal ● Oct. 2, 2026

"We will ensure the learning from the coroner's findings informs our continuing work to strengthen patient safety and care," says Dr Bridle.

From BBC ● Oct. 1, 2026

“The decision is the same. Not ready,” he informs the floor.

From "Al Capone Does My Shirts" by Gennifer Choldenko

Not only do we carry the horrors of the universe in our pockets, we spend most of our waking hours gazing into that abyss in the name of staying informed.

From Slate ● Nov. 1, 2026

Employees facing misconduct allegations would be informed of the possible outcomes before being asked to respond and a suicide prevention framework was being developed, it added.

From BBC ● Oct. 30, 2026

Kelker-Kelly’s wife, Allison Kelly, informed authorities the actor complained of pain in his left arm and chest while on the drive home from Spirit Airport, People reported.

From Los Angeles Times ● Oct. 30, 2026

These comparisons allow investors to make informed trade-offs.

From The Wall Street Journal ● Oct. 28, 2026

Mr. Collins had informed Powers he’d been chosen for a “special mission.”

From "Fallout: Spies, Superbombs, and the Ultimate Cold War Showdown" by Steve Sheinkin

"I am grateful to them for informing me," he said.

From Barron's ● Oct. 1, 2026

Last Wednesday, the city sent letters to the Metro Little League and the MBA informing them that their access to the athletic fields was revoked.

From Los Angeles Times ● Sep. 29, 2026

“If they were serious about informing people about how to save lives, they would put the Heimlich maneuver on top of their website.”

From The Wall Street Journal ● Sep. 9, 2026

The findings suggest that studying the genetics of personality could have implications well beyond psychology, potentially informing research in medicine, health, education and the workplace.

From Science Daily ● Sep. 8, 2026

Shortly after I collected the last of the game’s nineteen treasures, a tiny brass bauble, a notice flashed in my display informing me that the Vonnegut had arrived outside.

From "Ready Player One: A Novel" by Ernest Cline

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