Phrase guide

key fob

noun · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

An item carried on a key ring either as decoration or for security.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A passive wireless electronic device that usually uses RFID technology to control access to buildings, containers, computers, etc. by being placed near a detector.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

An active wireless electronic device that controls access to buildings or vehicles, such as a remote control for a car door lock.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Across languages

Translations

35 source translations are retained for this English entry.

  • Belarusian: бірулька (birulʹka) — item carried on a key ring
  • Chinese Mandarin: 鑰匙圈掛飾 /钥匙圈挂饰 — item carried on a key ring
  • Dutch: sleutelhanger — item carried on a key ring
  • Finnish: avaimenperä — item carried on a key ring
  • German: Schlüsselanhänger — item carried on a key ring
  • Greek: μπρελόκ (brelók) — item carried on a key ring
  • Indonesian: gantungan kunci — item carried on a key ring
  • Irish: siogairlín eochrach — item carried on a key ring
  • Polish: brelok — item carried on a key ring
  • Romanian: breloc — item carried on a key ring
  • Russian: брело́к (brelók) — item carried on a key ring
  • Swedish: nyckelring — item carried on a key ring
  • Turkish: anahtarlık — item carried on a key ring
  • Vietnamese: móc chìa khoá — item carried on a key ring
  • Chinese Mandarin: 感應卡 /感应卡 — passive device that controls access
  • Finnish: (elektroninen) avaimenperä — passive device that controls access
  • Finnish: avaimenperätunnistin — passive device that controls access
  • Finnish: RFID-avain — passive device that controls access
  • French: badge — passive device that controls access
  • French: bip — passive device that controls access
  • German: elektronischer Schlüsselanhänger — passive device that controls access
  • German: RFID-Schlüsselanhänger — passive device that controls access
  • German: RFID-Transponder — passive device that controls access
  • Hungarian: közelítőkulcs — passive device that controls access
  • Polish: brelok — passive device that controls access
  • Russian: брело́к (brelók) — passive device that controls access
  • Chinese Mandarin: 遙控鑰匙 /遥控钥匙 (yáokòng yàoshi) — active device that controls access
  • Chinese Mandarin: 電子鑰匙 /电子钥匙 (diànzǐ yàoshi) — active device that controls access
  • Finnish: (kauko-ohjattava) autonavain — active device that controls access
  • German: (elektronischer) Autoschlüssel — active device that controls access
  • German: Funkschlüssel — active device that controls access
  • Polish: brelok — active device that controls access
  • Russian: брело́к (brelók) — active device that controls access
  • Spanish: llavín automotriz con control remoto — active device that controls access
  • Spanish: control remoto automotor con llavín — active device that controls access