key fob
A 'key fob' can refer to both a functional electronic device used for access control and a decorative item attached to a keyring.
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Definition
B2Security
(technical)A small electronic device that communicates wirelessly to control access to vehicles, buildings, or other secure areas.
Example
- She used her key fob to unlock the office door.
B1Everyday Use
(general)A decorative or functional item attached to a keyring, often used for identification or convenience.
Example
- He added a colorful key fob to his keyring to make it easier to find.
Similar
Terms that have similar or relatively close meanings to "key fob":