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Synonyms

approximate

American  
[uh-prok-suh-mit, uh-prok-suh-mayt] / əˈprɒk sə mɪt, əˈprɒk səˌmeɪt /

adjective

  1. near or approaching a certain state, condition, goal, or standard.

  2. nearly exact; not perfectly accurate or correct.

    The approximate time was 10 o'clock.

  3. near; close together.

  4. very similar; nearly identical.


verb (used with object)

  • approximates,
    present (3rd person singular)
  • approximated,
    past participle,  past
  • approximating
    present participle
  1. to come near to; approach closely to.

    to approximate an ideal.

  2. to estimate.

    We approximated the distance at three miles.

  3. to simulate; imitate closely.

    The motions of the stars can be approximated in a planetarium.

  4. to bring near.

verb (used without object)

  • approximates,
    present (3rd person singular)
  • approximated,
    past participle,  past
  • approximating
    present participle
  1. to come near in position, character, amount, etc.

approximate British  

adjective

  1. almost accurate or exact

  2. inexact; rough; loose

    only an approximate fit

  3. much alike; almost the same

  4. near; close together

"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

verb

  1. (usually foll by to) to come or bring near or close; be almost the same (as)

  2. maths to find an expression for (some quantity) accurate to a specified degree See accurate

"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 approximate

1400–50; late Middle English < Late Latin approximātus drawn near to, approached (past participle of approximāre ). See ap- 1, proximate


Explanation

To approximate is to calculate the value of something based on informed knowledge. A computer program can approximate the value of a house based on square footage, number of rooms, year built, and other relevant factors. As a verb, approximate means "to estimate." Unlike the word guess, approximate implies the use of a logical or mathematical method. You might guess how tall a friend is based on the first number that comes to mind, but you could approximate his height by using your own height as a comparison. As an adjective, approximate can mean "near" or "close together." If your friend calls to say he’s at a location approximate to your house, she’s in your neighborhood.

Keep Reading on Vocabulary.com

Vocabulary lists containing approximate

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:

As his team has plummeted in the SEC standings, he has noted that his quarterbacks are in competition—despite the approximate $2 million price tag on starter LaNorris Sellers.

From The Wall Street Journal ● Oct. 4, 2026

"Because the collision was considered violent enough to melt and vaporize large portions of Earth and Theia, those previous papers assumed that it is okay to approximate them as fluids," Asphaug said.

From Science Daily ● Sep. 11, 2026

He gave an approximate estimate that the VAT cut in Northern Ireland would initially cost the Treasury between £225m and £250m a year.

From BBC ● Sep. 2, 2026

Senate seats in South Carolina become open with the approximate frequency of a total solar eclipse.

From Slate ● Aug. 25, 2026

Foremole and his team knew all there was to know about the diggings: depth, approximate dimensions, the placement of shoring, even where the first rat’s head was likely to break ground.

From "Redwall" by Brian Jacques

To save the hue, Voltarc reformulated it with a clever workaround: a color-balancing technique that approximates the iconic green glow without the missing component.

From The Wall Street Journal ● Aug. 21, 2026

“We continue to believe that ARCC’s current dividend approximates the long-run underlying earnings power of our business,” CEO Kort Schnabel told listeners on last week’s earnings call.

From Barron's ● May 6, 2026

His explanation for this time frame is that it approximates the debt refinancing cycle because the weighted average maturity of that debt is just over five years.

From MarketWatch ● Nov. 21, 2025

Fictionalized versions of real-world scenarios are never going to be as accurate as the true experience, but the show’s 1990 version of a platoon better approximates the Marines’ professed ideal.

From Salon ● Oct. 10, 2025

Instead he approximates the accents of teachers and classmates.

From "Hunger of Memory" by Richard Rodriguez

The researchers first used a vacuum pump to remove air from glass tubes, producing conditions that approximated the near emptiness of space.

From Science Daily ● Jul. 19, 2026

Rather, they meant to establish what Lincoln called a “standard maxim for free society,” which should be constantly looked to, labored for and more nearly approximated.

From The Wall Street Journal ● Jun. 16, 2026

So when he launched his own podcast this October, my reaction roughly approximated that one Vince McMahon meme: Bill Nighy has an advice podcast?

From Salon ● Dec. 26, 2025

To avoid overlap, the vertical placement of some circles is approximated.

From The Wall Street Journal ● Nov. 5, 2025

He’d even approximated the artillery reach from each of the gun turrets on the towers and signified with dotted lines how he guessed the different inner chambers would be laid out.

From "Dactyl Hill Squad" by Daniel José Older

Far easier to build the observatory of brick and to spray it with stucco, approximating concrete’s smooth contours.

From The Wall Street Journal ● Jul. 24, 2026

In something more approximating plain English: Smith could ask Cannon’s de facto bosses at the U.S.

From Salon ● May 16, 2024

However, scientists think they are close to approximating a Majorana particle in a much different guise.

From Science Magazine ● Dec. 20, 2023

Crystal was founded in 1962 — the same year as Vail in Colorado — but never developed facilities approximating the industry’s flagship destinations.

From Seattle Times ● Apr. 1, 2023

He makes the best and most subtle martini in the world by a process approximating magic.

From "Travels with Charley in Search of America" by John Steinbeck

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