What does "recognizer" mean?

A person, device, or software algorithm that recognizes.

Recognizer

Common synonyms include: acknowledger, identifier, pattern detector, pattern recognizer, recognition engine, spotter.

noun

noun ·Rare ·Advanced level

Noun

1
A person, device, or software algorithm that recognizes.
"If we drive to work, a face recognizer installed in the car will decide whether to authorize our usage of the vehicle[…]"

"If we drive to work, a face recognizer installed in the car will decide whether to authorize our usage of the vehicle[…]"

From recognize + -er.