Word

detection

noun C1

/dɪˈtɛk.ʃən/

Meanings

noun

the act or process of discovering or noticing something, especially something hidden or difficult to perceive

noun

the identification of something by a device, system, or test (for example, a sensor finding smoke or software finding an anomaly)

detection: the identification of something by a device, system, or test (for example, a sensor finding smoke or software fin…

Definition

Detection is the act or process of noticing, discovering, or identifying something, often by careful checking or technology.

Detection refers to finding or recognizing something that is present but not immediately obvious. It often involves observation, testing, or using tools such as sensors or software. The word is common in science, security, and everyday situations where something needs to be identified reliably.

Examples

Early detection of the leak depended on routine checks, not luck.
Their software improved detection of unusual login patterns without slowing the system down.
The team focused on detection rather than blame, so they could fix the issue quickly.
Accurate detection of subtle changes in temperature requires well-calibrated instruments.

Common mistake

Learners sometimes confuse detection (the process) with detector (the device that detects).