English dictionary, thesaurus, translations & etymology
FreeDict.com
noun

fob

fob
noun
1
A small handheld device used to unlock a car or open a secured door remotely, or a decorative attachment on a keychain or watch chain.
"She pressed the fob to unlock her car from across the parking lot."
"His grandfather still carried a pocket watch with a silver fob."
2
A small pocket for holding a watch or valuables, especially in old-fashioned trousers or waistcoats.
"The antique waistcoat had a fob for a pocket watch."
verb
1
To cheat or trick someone, often in the phrase "fob off."
"He tried to fob off the customer with a cheap replacement."

How to Use Fob

Learner’s notes

In plain EnglishA small remote-control device for cars/doors, or (older sense) a pocket or chain ornament for a watch.

Common pairings
key fob fob off watch fob

Word Forms

fobbed past tense, fobs plural, fobs singular

Study it as flashcards or scroll it in Flow — saved to your collection.
Test yourself on “fob” A quick quiz — meaning, synonyms & usage

Fill the Gap

Can you complete this real example?

She pressed the _____ to unlock her car from across the parking lot.

Etymology

Probably from an old Germanic word for "pocket," related to Swedish ficka and German dialect forms.

Definitions: FreeDict original editorial