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Synonyms

detect

American  
[dih-tekt] / dɪˈtɛkt /

verb (used with object)

  1. to discover or catch (a person) in the performance of some act.

    to detect someone cheating.

  2. to discover the existence of.

    to detect the odor of gas.

  3. to find out the true character or activity of.

    to detect a spy.

  4. Telecommunications.

    1. to rectify alternating signal currents in a radio receiver.

    2. to demodulate.


detect British  
/ dɪˈtɛkt /

verb

  1. to perceive or notice

    to detect a note of sarcasm

  2. to discover the existence or presence of (esp something likely to elude observation)

    to detect alcohol in the blood

  3. to extract information from (an electromagnetic wave)

  4. obsolete to reveal or expose (a crime, criminal, etc)

"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

Usage

What are other ways to say detect?

To detect is to discover something hidden or unknown. When should you use detect over learn, discover, or ascertain? Find out on Thesaurus.com. 

Other Word Forms

  • detectability noun
  • detectable adjective
  • detecter noun
  • detectibility noun
  • detectible adjective
  • predetect verb (used with object)
  • undetectable adjective
  • undetectably adverb
  • undetected adjective
  • undetectible adjective

Etymology

Origin of detect

First recorded in 1400–50; late Middle English, from Latin dētēctus “discovered,” past participle of dētegere “to uncover, discover,” from dē- de- + tegere “to cover”; thatch

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.

The Growler also carries so-called anti-radiation missiles that detect and then destroy an adversary’s radar.

From The Wall Street Journal

Greenland is considered strategically well located to detect long-range ballistic missiles.

From Barron's

Measuring 2x4, the brick itself contains sensors, lights, a small sound synthesiser, an accelerator and a custom-made silicon chip enabling it to detect movement and react to it.

From BBC

Powered entirely by light, the robots contain microscopic computers that allow them to follow programmed paths, detect local temperature changes, and adjust their movement in response.

From Science Daily

One gauge recorded the tsunami earlier than expected, while the other detected it later.

From Science Daily