Reference meaning
key fob
Last updated
An item carried on a key ring either as decoration or for security.
Other meanings
2. noun
A passive wireless electronic device that usually uses RFID technology to control access to buildings, containers, computers, etc. by being placed near a detector.
3. noun
An active wireless electronic device that controls access to buildings or vehicles, such as a remote control for a car door lock.
Source and scope
This definition is reproduced from English Wiktionary, sense en-key_fob-en-noun-2yHLiyBj, under the CC BY-SA 4.0. It has not yet received VocabularyBase editorial review. Read the source and license details.