detect

verb

de·​tect di-ˈtekt 

dē-

detected; detecting; detects

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

: demodulate

intransitive verb

: to work as a detective

detectability

di-ˌtek-tə-ˈbi-lə-tē 

dē-

noun

detectable

di-ˈtek-tə-bəl 

dē-

adjective

Synonyms

• ascertain
• descry
• determine
• dig out
• dig up
• discover
• dredge (up)
• ferret (out)
• find
• find out
• get
• hit (on or upon)
• hunt (down or up)
• learn
• locate
• nose out
• root (out)
• rout (out)
• rummage
• run down
• scare up
• scout (up)
• track (down)
• turn up

Examples of detect in a Sentence

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

Once cleaned, explore and profile the data to detect patterns, outliers and anomalies. —Ashar Samdani, Forbes.com, 24 Apr. 2025

Selection would drive them toward having the sensory capacity to detect those bits and use them as camouflage. —ArsTechnica, 24 Apr. 2025

The wildfire was first detected Tuesday around 9:45 a.m. in the Greenwood Forest Wildlife Management Area in Barnegat Township, some 90 miles south of Midtown Manhattan. —Muri Assunção, New York Daily News, 23 Apr. 2025

Even when the information is secure, it can be misused or manipulated in ways that are hard to detect. —Kurt Knutsson, Cyberguy Report, FOXNews.com, 23 Apr. 2025

Word History

Etymology

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

First Known Use

1574, in the meaning defined at transitive sense 1

Rhymes for detect

• affect
• aspect
• bedecked
• bisect
• collect
• connect
• correct
• deflect
• direct
• dissect
• effect
• eject

Kids Definition

detect

verb

de·​tect di-ˈtekt 

: to discover the nature, existence, presence, or fact of

detect the approach of an airplane

detectable

-ˈtek-tə-bəl 

adjective

detection

-ˈtek-shən

noun