fob
1 Americannoun
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fobs
plural
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a small pocket just below the waistline in pants, designed for a watch, keys, change, etc.
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especially formerly,
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a short chain or ribbon, usually with a medallion or similar ornament, attached to a watch and worn hanging from a pocket.
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the medallion or ornament itself.
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The fob allows students 24/7 access into the residence building and their rooms.
I could never find my nail clipper in my purse, so now I’m using it as a fob on my keychain.
verb (used with object)
verb phrase
abbreviation
noun
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a chain or ribbon by which a pocket watch is attached to a waistcoat
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any ornament hung on such a chain
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a small pocket in a man's waistcoat, for holding a watch
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a metal or plastic tab on a key ring
verb
noun
abbreviation
Other Word Forms
Noun Inflected Forms
Etymology
Origin of fob1
First recorded in 1645–55; origin uncertain; compare dialectal German Fuppe, Low German Fobke “pocket”
Origin of fob2
First recorded in 1350–1400; Middle English fobben; perhaps cognate with German foppen “to delude, kid, tease” ( cf. fop) or, alternatively, akin to French fourbe “cheat, swindler” (from Old French forbir “to clean”; see furbish ( def. ))
Origin of f.o.b.3
First recorded in 1870–75
Explanation
A fob is a chain that holds an old-fashioned pocket watch. If your grandfather carries his watch around in a little pocket in his vest, it's probably attached with a fob. It's uncommon to see a watch fob these days, but they were once as ordinary as the watches they held. The little pockets sewn in men's clothing were also fobs, and today, a key chain is sometimes called a fob. When fob is a verb, it means to fool people or play a trick on them, especially by giving them something less valuable than they expect. This meaning is from the obsolete fobbe, "cheater."
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
Still they forgot things, like a $600 spare key fob for Frank’s truck.
From The Wall Street Journal ● Jun. 20, 2026
The doors typically don’t unlock when I approach the car until I pull out the key fob and hit the unlock button.
From The Wall Street Journal ● Dec. 20, 2025
The bag or box is made out of conductive metal mesh that blocks the electromagnetic signals that emit from the key fob, according to AAA.
From Los Angeles Times ● Nov. 26, 2025
Mr Heathcote agreed with the assessment, suggesting that a radio signal from a phone or car fob may have been the trigger.
From BBC ● Dec. 17, 2024
His polished boots, the thick gold watch chain cinched across his waistcoat, the handsome fob.
From "The City Beautiful" by Aden Polydoros
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Price of the '49 Ford: $1,163 and up, f.o.b.
From Time Magazine Archive
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Prewar price to zoos: $2,000 to $3,000, f.o.b.
From Time Magazine Archive
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For entirely proper reasons, they had refused to ship any sugar this year at the 1945 price of $3.10 per 100 lbs. f.o.b.
From Time Magazine Archive
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For two pandas, f.o.b., he demanded two one-year scholarships, complete with tuition and living expenses, for deserving Szechwan students.
From Time Magazine Archive
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Oil - exports: NA Oil - imports: NA Exports: $14 million f.o.b.
From The 2005 CIA World Factbook by United States. Central Intelligence Agency
"They're in all modern cell phones, key fobs, garage door openers, most GPS receivers, many radar systems and more."
From Science Daily ● Jan. 17, 2026
Hikers carry fobs and must scan in at four checkpoints 7 miles apart and depart by a certain time or quit.
From The Wall Street Journal ● Jun. 27, 2025
The watchdog identified an "inflexible and indiscriminate" approach to the use of key fobs to control access to internal doors and gates, regardless of whether service users had capacity.
From BBC ● May 15, 2025
Automakers have started adding motion sensors to key fobs.
From Seattle Times ● May 16, 2024
It’s then that I remember the email that said we’d need our key fobs to access the pool if we wanted to swim before eight a.m. on weekdays.
From "Red Flags and Butterflies" by Sheryl Azzam
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Zara Dedman, 38, from Kent, says being "fobbed off" by doctors has had a huge impact on her mental health.
From BBC ● May 20, 2026
"I was absolutely gutted and every phone call I made to the Bournemouth office, I got fobbed off."
From BBC ● Oct. 17, 2025
"We're just getting fobbed off. The evidence is all there," she said.
From BBC ● Apr. 10, 2025
"I feel totally fobbed off by Bellway," he says.
From BBC ● Jan. 13, 2025
What wonder then that Newcastle's choice fell on Fox, who at any rate could not be fobbed off by stories of the King's insurmountable repugnance and who was the favourite of the King's favourite son?
From Lord Chatham His Early Life and Connections by Archibald Phillip Primrose Rosebery
"I feel that they're fobbing me off really. I've reported this crime. It is the police's job to investigate it," she said.
From BBC ● Jul. 22, 2025
They’re asking that HHS deal directly with their case instead of fobbing it off to the NIH, which would bring it under the purview of HHS Secretary Xavier Becerra.
From Los Angeles Times ● Mar. 24, 2023
A major challenge will be keeping researchers from simply treating the requirement as another box to tick or fobbing the work off on minority scientists, Hodari says.
From Science Magazine ● Oct. 4, 2022
Instead of fobbing women off with wobbly perks, she says, employers need to reorganise work so that people – men and women – needn’t have to choose between a career and a family.
From The Guardian ● Feb. 7, 2016
It is no use closing our eyes and fobbing ourselves off with words.
From Jean-Christophe Journey's End by Gilbert Cannan
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.