key fob

[kee fob]

noun

1. a programmed, battery-powered device enabling keyless access or entry, especially to a vehicle, usually carried on a key ring or keychain.

   The windows and sunroof of your car can also be opened and closed using the key fob.

2. 1. an ornament or other object attached to a key ring or keychain.

      This key fob of tooled leather can hold a small photo.

   2. a key ring or keychain with such an ornament on it.

      Has anyone turned in a key fob with a little foam golf ball and three keys on it?

Word History and Origins

Origin of key fob¹

First recorded in 1910–15

Example Sentences

In the Anaheim Hills incidents, one of the vehicles was stolen by thieves accessing the key fob signal through an antenna.

Read more on Los Angeles Times

The downside of this feature, Sutter said, is a signal is constantly being emitted from the key fob, similar to a debit card.

Read more on Los Angeles Times

You can also weaken the signal by purchasing a signal blocking bag or box to leave the key fob in.

Read more on Los Angeles Times

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.

Read more on Los Angeles Times

Many newer vehicles have a remote keyless entry system where a key fob emits a signal that unlocks the car door and in some cases starts the car when it’s within a certain distance of the driver’s side.

Read more on Los Angeles Times