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fob

fob

4 6.8
A small electronic device on a keyring that opens doors or starts cars
  • noun
  • /fɑb/
  • Specialized
translation icon : llavero
  • Passive lock systems automatically unlock the doors as you approach, while a quick touch of the key fob opens the tailgate or trunk.
  • key fob
  • car key fob
  • electronic fob

So, you know, hotel keys, apartment fobs, this will, you know, scan passports.

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Examples

  • After pressing the button on the fob, the lights on the vehicle flashed, indicating it was unlocked.

  • So this car has a key fob just like a normal car, but the functions of the key fob are anything but normal.

  • I also have the normal key fob, which is really cool.

  • I can control the entire car from the fob.

  • Where did you get that fob?

  • At all times, have your key fob remote in hand and a finger on the car alarm button.

    Blog text (7)
  • I take the car key and the keyless entry fob off my keychain.

    Blog text (18)
  • One of the most common forms is key fobs with a periodically changing number synchronized with a remote server.

    Academic text (2012)
  • Key rings with buttons that release car locks are another example of RFID, and some newer cars use the technology to prevent the car from starting unless the key fob is hanging from or at least near the steering column.

    Academic text (2005)
  • It's becoming increasingly common for smart cards, fobs, and other work-issued devices to be embedded with Global Positioning System chips, radio frequency identification, and other technologies that allow employers to track every movement of their employees—both at work and away from it.

    Academic text (2008)

Synonyms

keycard
vsfob
10 3.5

A plastic card with a magnetic strip that opens locked doors

is a compact electronic wireless gadget usually attached to a key ring
ignition key
vsfob
2 2.3

A metal key used to start a car engine

is an electronic access device that can also start vehicles without a metal item
passkey
vsfob
2 6.0

A key that opens every lock in a set, like all rooms in a building

is an electronic gadget for specific vehicle or payment access, not universal opening
key fob
vsfob
1 3.8

A small electronic device on a key ring that opens doors or starts a car

is a small electronic gadget used for unlocking, starting, or authorizing payments
keyfob
vsfob
4.6

A small object on a key ring used to identify keys or unlock a car from a distance

is an electronic access tool rather than a simple ornament

Compounds

1 3.8

A small electronic device on a key ring that opens doors or starts a car

3.6

A small thing on a key ring that makes keys easier to find

Surface Forms

fob singular
fobs plural

Etymology

Fob for a keyring device got its name by extension from the old pocket fob, because both are small things you carry on your keys. So a fob today is a small electronic device you use to open doors or start a car.