fob

/fɒb/

//fɒb// noun

"fob" is a 3-letter English headword indexed on PlainSpell.

The verdict

“fob” is a moderately-common English word, ranked #25,388 in English word frequency and used as a noun.

#25,388
frequency rank, English
3
letters
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A little pocket near the waistline of a pair of trousers or in a waistcoat or vest to hold money or valuables, especially a pocket watch.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

fob vs fu
33% similar
fob vs FS
0% similar
fob vs FP
0% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for fob
PropertyValue
Headwordfob
LanguageEnglish
Part of speechNoun
IPA/fɒb/
Letters3
Frequency rank#25,388
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “fob” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). fob lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for fob is 3 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /fɒb/. Corpus data places it at rank #25,388 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 4 distinct senses for this headword, so context determines which meaning a reader should apply.

fob has no tracked misspelling variants, and the word's spelling is regular enough that our generator found nothing worth flagging. It also participates in 20 confusable-pair relationships, "fu", "FS", "FP", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From Low German Fobke (“pocket”) or High Prussian Fuppe (“pocket”), probably related to Swedish ficka (“pocket”), Old Danish fikke, Alemannic German figge, Middle Dutch vicke, all from Proto-Germanic *fikkja, of uncertain ultimate origin: * possibly from Pr… The correct English form is fob, spelled F-O-B.

Definition

  1. 1
    A little pocket near the waistline of a pair of trousers or in a waistcoat or vest to hold money or valuables, especially a pocket watch.
  2. 2
    A short chain or ribbon to connect such a pocket to the watch.
  3. 3
    A small ornament attached to such a chain.
  4. 4
    A hand-held electronic device that can be used as a remote control or as a key to unlock motor cars, doors, etc., and thus, modern car keys.

Etymology

From Low German Fobke (“pocket”) or High Prussian Fuppe (“pocket”), probably related to Swedish ficka (“pocket”), Old Danish fikke, Alemannic German figge, Middle Dutch vicke, all from Proto-Germanic *fikkja, of uncertain ultimate origin: * possibly from Proto-Indo-European *pewǵ- (“to assail, strike”), related to *fukkōną (“to strike”); * or of Romance origin, from Latin figere (“to fix, fasten”), possibly via an old form of Italian ficcare. Also see Ficke.

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "fob"?
"fob" is spelled F-O-B. The IPA pronunciation is /fɒb/.
What does "fob" mean?
As a noun, "fob" means: A little pocket near the waistline of a pair of trousers or in a waistcoat or vest to hold money or valuables, especially a pocket watch.
What words are commonly confused with "fob"?
"fob" is commonly confused with "fu", "FS", "FP". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "fob"?
The IPA (International Phonetic Alphabet) transcription for "fob" is /fɒb/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "fob"?
From Low German Fobke (“pocket”) or High Prussian Fuppe (“pocket”), probably related to Swedish ficka (“pocket”), Old Danish fikke, Alemannic German figge, Middle Dutch vicke, all from Proto-Germanic *fikkja, of uncertain ultimate origin: * possib... See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “fob”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is F-O-B - every other letter order is a misspelling in standard orthography.
  • Say it as /fɒb/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “fu” - see the side-by-side comparison. fob vs fu
  • Browse more English words and confusable pairs in the same reference. English words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list