key fob

Fetched 2026-10-26 (cache).

Synonyms: keyfob

Antonyms: keyfob

Related words from Datamuse; suggestions, not definitions.

Noun

1. An [[item]] [[carried]] on a [[key ring]] either as [[decoration]] or for [[security]].
2. 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. An active wireless electronic device that controls access to buildings or vehicles, such as a [[remote control]] for a car door lock.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.