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Synonyms

calibrate

American  
[kal-uh-breyt] / ˈkæl əˌbreɪt /

verb (used with object)

calibrated, calibrating
  1. to determine, check, or rectify the graduation of (any instrument giving quantitative measurements).

  2. to divide or mark with gradations, graduations, or other indexes of degree, quantity, etc., as on a thermometer, measuring cup, or the like.

  3. to determine the correct range for (an artillery gun, mortar, etc.) by observing where the fired projectile hits.

  4. to plan or devise (something) carefully so as to have a precise use, application, appeal, etc..

    a sales strategy calibrated to rich investors.


calibrate British  
/ ˈkælɪˌbreɪt /

verb

  1. to measure the calibre of (a gun, mortar, etc)

  2. to mark (the scale of a measuring instrument) so that readings can be made in appropriate units

  3. to determine the accuracy of (a measuring instrument, etc)

  4. to determine or check the range and accuracy of (a piece of artillery)

"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

calibrate Scientific  
/ kălə-brāt′ /
  1. To check, adjust, or standardize a measuring instrument, usually by comparing it with an accepted model.

  2. To measure the diameter of the inside of a tube.


Other Word Forms

  • calibrater noun
  • calibration noun
  • calibrator noun
  • recalibrate verb (used with or without object)
  • uncalibrated adjective

Etymology

Origin of calibrate

First recorded in 1860–65; calib(e)r + -ate 1

Explanation

The word calibrate means making precise measurement. For example, you might want to calibrate your bathroom scale now and then to be sure it’s adjusted for exact weight. Or calibrate it to read five pounds light. We won't tell. To find the origin of calibrate, we must look at its root, caliber, which appeared in the late 15th-century Middle French as calibre, meaning "a degree of importance." Linguists trace that word to an Arabic beginning, the word qalib, which referred to a mold for making bullets. That meaning seems to have carried over to our word, the verb calibrate, which first meant to measure the range of a projectile such as a bullet or shell.

Keep Reading on Vocabulary.com

Vocabulary lists containing calibrate

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.

Georgieva said the Fund was already in talks with Sri Lanka on how to "calibrate" an existing program to meet the country's needs.

From Barron's • Apr. 9, 2026

Whether that bet pays off remains to be seen, but the broader market later stabilized somewhat as investors continued to calibrate the geopolitical impacts.

From MarketWatch • Mar. 3, 2026

“We calibrate and validate each device in this butt,” says Hall, who calls it the “key innovation” that made developing the sensor possible.

From The Wall Street Journal • Feb. 20, 2026

They calibrate asset allocation to align your portfolio with your goals and values.

From MarketWatch • Jan. 26, 2026

It’s true that every writer must calibrate the degree of specialization in her language against her best guess of the audience’s familiarity with the topic.

From "The Sense of Style" by Steven Pinker