# facial recognition

CEFR B2 · Compound

Source: https://englishreference.com/word/facial-recognition
Updated: 2026-07-22

## Definition

technology that can identify a person by looking at their face in a photo or video. You might use it to unlock your phone or at an airport.

For teachers: a biometric technology capable of identifying or verifying a person from a digital image or a video frame by comparing selected facial features. Often used in security systems and mobile device authentication.

## Examples

- The airport uses facial recognition to speed up the boarding process.
- Many modern smartphones use facial recognition as a secure way for users to unlock their devices without typing a password.
- Privacy advocates have raised concerns regarding the deployment of facial recognition in public spaces, citing potential issues with mass surveillance and algorithmic bias.

## Usage notes

- Typically functions as a compound noun; often used as a modifier before other nouns like 'software' or 'technology'.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.