Meaning & use

detected

verb·Academic

Last updated

UK/dɪˈtek.tɪd/
US/dɪˈtɛk.tɪd/

“detected” is a form of “detect”. See that entry for the full set of meanings.

Meanings

  1. verbtransitive

    Noticed or found something that was hidden, faint or hard to see, often with the help of an instrument.

    Grammar: Past tense and past participle; always takes an object: the scanner detected a leak.

    Patterns

    • detected something in something
    • something was detected by something

    The sensors detected smoke in the hallway.

    Doctors detected a small tumor during the routine scan.

    She detected a hint of sadness in his voice.

  2. verbtransitive

    Worked out or discovered that something wrong or hidden, such as a crime or error, was happening.

    Grammar: Takes an object and often appears in passive form: the fraud was detected early.

    Patterns

    • detected that something
    • the fraud was detected

    The accountant detected an error in the quarterly report.

    Customs officers detected the smuggled goods inside a crate.

    Software detected unusual activity on his account.

Common combinations

first detected
The virus was first detected in a small town.
detected early
The disease was detected early, so treatment worked well.
go undetected
The leak went undetected for months.
detected by radar
The aircraft was detected by radar far from the coast.
detected traces of
Tests detected traces of lead in the water.

Synonyms and how they differ

discovered
Discovered stresses finding something that was previously unknown, while detected often means sensing something hidden or slight.
noticed
Noticed is casual and needs no instruments, while detected suggests more effort or technology.
spotted
Spotted is informal and suggests seeing something quickly with your eyes.
identified
Identified means saying exactly what something is, which goes a step further than just sensing its presence.

Opposites

Word family

detect verb
to notice or find something hidden
detection noun
the act of finding something hidden
detector noun
a device that senses something
detectable adjective
able to be noticed or measured
undetected adjective
not noticed

Commonly confused: detected or detected?

detected vs detected

Do not mix it up with detective, a person who investigates crimes. A detective may detect clues, but detected is only the past form of detect.

Practice

The airport scanner ____ a small metal object hidden in the lining of the bag.

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