Meaning & use
fob
Last updated
A small device or ornament attached to a keychain or watch chain, often used to unlock doors or vehicles electronically.
See it in a sentence
She waved her key fob near the sensor and the office door clicked open.
He lost his car fob and had to pay to get a replacement programmed.
A note on using this word
Originally referred to a decorative charm on a pocket-watch chain; the meaning has expanded to include modern electronic key fobs.
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