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probe

American  
[prohb] / proʊb /

verb (used with object)

  • probes,
    present (3rd person singular)
  • probed,
    past participle,  past
  • probing
    present participle
  1. to search into or examine thoroughly; question closely.

    to probe one's conscience.

    Synonyms:
    scrutinize, investigate
  2. to examine or explore with or as if with an instrument.

    The dentist probed the offending tooth.

    She keeps probing her ear with a cotton swab.


verb (used without object)

  • probes,
    present (3rd person singular)
  • probed,
    past participle,  past
  • probing
    present participle
  1. to examine or explore a matter thoroughly (sometimes followed byinto ).

    The checklist consists of a series of questions carefully designed to probe into all aspects of your business.

    The cross-examiner probed a little more before dismissing the witness.

  2. to explore or search with or as if with an instrument.

    You may have to probe with the rod until you find the mouth of the pipe.

noun

  • probes
    plural
  1. an act or instance of probing.

  2. an investigation, especially by a legislative committee, of suspected illegal activity.

  3. a tool or instrument designed for examining something, especially a slender surgical instrument for exploring the depth or direction of a wound, sinus, or the like.

  4. Aerospace. space probe.

  5. a projecting, pipelike device on a receiving aircraft used to make connection with and receive fuel from a tanker aircraft during refueling in flight.

  6. a device, attached by cord to an oven, that can be inserted into roasts or other food so that the oven shuts off when the desired internal temperature of the food is reached.

  7. Biology. any identifiable substance that is used to detect, isolate, or identify another substance, as a labeled strand of DNA that hybridizes with its complementary RNA or a monoclonal antibody that combines with a specific protein.

probe British  
/ prəʊb /

verb

  1. (tr) to search into or question closely

  2. to examine (something) with or as if with a probe

"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

noun

  1. something that probes, examines, or tests

  2. surgery a slender and usually flexible instrument for exploring a wound, sinus, etc

  3. a thorough inquiry, such as one by a newspaper into corrupt practices

  4. electronics a lead connecting to or containing a measuring or monitoring circuit used for testing

  5. electronics a conductor inserted into a waveguide or cavity resonator to provide coupling to an external circuit

  6. any of various devices that provide a coupling link, esp a flexible tube extended from an aircraft to link it with another so that it can refuel

  7. See space probe

"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

Nouns

Participles

Conjugated Forms

Present

Past

Future


Etymology

Origin of probe

First recorded in 1555–65; (noun) from Medieval Latin proba “examination,” Late Latin: “test,” derivative of probāre “to try, test, prove” ( see proof ( def. ), prove ( def. )); (verb) partly derivative of the noun, partly from Latin probāre


Explanation

If you probe something, you investigate it thoroughly. If you go into business with someone, you might probe her finances to make sure that she has a good track record. Although it is usually used as a verb — "the police probed the man’s disappearance" — it can also be used as a noun to describe an information-gathering device. In 1979 the United States launched the world's first space probe into outer space. It was a spacecraft rigged with cameras, which were used to photograph Jupiter and Saturn.

Keep Reading on Vocabulary.com

Vocabulary lists containing probe

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:

The EU launched the probe in June over concerns that Sanofi’s marketing in France and Germany amounted to disparagement campaigns against CSL.

From The Wall Street Journal ● Oct. 14, 2026

It says he had two "freebie dinners" with City and that a Sun probe has found "deleted records".

From BBC ● Oct. 14, 2026

"It gives us a sensitive probe of our cosmological models."

From Science Daily ● Oct. 13, 2026

He announced other measures including the appointment of a dedicated staff member to support individuals reporting sexual misconduct, and inviting specialized New York State Police detectives to probe future sexual assault allegations.

From Barron's ● Oct. 13, 2026

There he was immersed in an effort to produce high-energy protons to probe the atomic nucleus, using his balky Tesla coils and Van de Graaff generators.

From "Big Science" by Michael Hiltzik

Having been subjected to multiple FCC probes of ABC’s programming, the corporation has pushed back in court against Carr, in what has already amounted to a drawn-out and expensive legal tussle.

From Slate ● Oct. 16, 2026

The researchers used advanced recording devices called Neuropixels probes to monitor electrical signals from hundreds of individual neurons in the hippocampus.

From Science Daily ● Oct. 15, 2026

The probes went to two other U.S. attorneys before Quiñones raised his hand to oversee it, people familiar with the assignment said.

From The Wall Street Journal ● Oct. 10, 2026

Sarah Spreitzer, vice president and chief of staff for government relations at the American Council on Education, said she had found little information about what the new probes would cover.

From Los Angeles Times ● Oct. 8, 2026

In front of us, Corban and Blake were already unhooked, while Eliana and Tess finished taking off the last of their probes.

From "Glitch" by Laura Martin

But the report includes details that investigators have probed in an effort to determine a cause.

From Los Angeles Times ● Oct. 6, 2026

Phillips was additionally probed by the House Ethics Committee for allegedly hiring a girlfriend to intern in Collins’ office.

From Slate ● Aug. 27, 2026

"This was the first time that shock-compressed diamond was probed with X-ray diffraction all the way up to melting," said Millot.

From Science Daily ● Aug. 20, 2026

It is not known whether these issues were probed further.

From BBC ● Aug. 16, 2026

So he watched as the mosquito patiently probed his hand with the cutting part of her proboscis, then sucked his blood for over a minute before flying off.

From "An American Plague: The True and Terrifying Story of the Yellow Fever Epidemic of 1793" by Jim Murphy

“NAZA” eschews probing for guilty feelings, though, because the point is to unearth a process of obliteration: how it works and what it looks like as implemented by the willing.

From Los Angeles Times ● Oct. 9, 2026

ICE and Homeland Security Investigations are probing the case.

From Barron's ● Sep. 29, 2026

British investigators are probing whether Iran or an Islamist group was behind a foiled attack on the RAF Fairford air base in western England.

From The Wall Street Journal ● Sep. 28, 2026

Police are probing any links to Iran, the paper says.

From BBC ● Sep. 28, 2026

While Carter had been making speeches and Obie flashing his poster around, Archie’s mind had been racing, probing, testing.

From "The Chocolate War" by Robert Cormier

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