detector

word

/dɪˈtɛktɝ/
di-TEK-tur
/dɪtˈɛktɐ/
di-TEK-tuh

Definition

A device or instrument that discovers or senses the presence of something, such as smoke, metal, or motion.

Usage & Nuances

Used in technical, scientific, and safety contexts. Common collocations: 'smoke detector', 'metal detector', 'motion detector'. Usually refers to electronic or mechanical devices.

Example Sentences

The smoke detector started making a loud sound.

basic

We passed through a metal detector at the airport.

basic

The scientist used a detector to find radiation.

basic

Do you know if there’s a motion detector in this room?

natural

My phone's face detector sometimes doesn't work in the dark.

natural

He bought a carbon monoxide detector for extra safety at home.

natural