detect

1 of 2

verb

detected; detecting; detects
Synonyms of detect

transitive verb

1
: to discover the true character of
detecting drug smugglers
2
: to discover or determine the existence, presence, or fact of
detect alcohol in the blood
Do I detect a note of sarcasm in your voice?
3

intransitive verb

: to work as a detective

detectable

2 of 2

adjective

: capable of being detected
detectability noun

Examples of detect in a Sentence

Verb The test is used to detect the presence of alcohol in the blood. This type of cancer is difficult to detect in its early stages.
Recent Examples on the Web
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Verb
While a crack in a propeller may be visible, contamination inside a motor bearing can be more difficult to detect. — Prabhat Ranjan Mishra, Interesting Engineering, 26 Oct. 2026 The company has yet to publicly show that its technology can reliably detect disease. — Bilin Lin, Fortune, 25 Oct. 2026 Even the most advanced cancers were correctly detected only 60% – 63% of the time. — Torie Bosch, STAT, 24 Oct. 2026 Credit monitoring can help detect certain types of identity theft, particularly fraud involving new credit accounts. — Kurt Knutsson, FOXNews.com, 24 Oct. 2026 See All Example Sentences for detect

Word History

Etymology

Verb

Middle English, from Latin detectus, past participle of detegere to uncover, detect, from de- + tegere to cover — more at thatch

First Known Use

Verb

1574, in the meaning defined at transitive sense 1

Time Traveler
The first known use of detect was in 1574

Browse Nearby Words

Cite this Entry

“Detect.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/detect. Accessed 27 Oct. 2026.

Kids Definition

: to discover the nature, existence, presence, or fact of
detect the approach of an airplane
detection
-ˈtek-shən
noun
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