5 cards
Definition.com
License plate reader (n.) is a speed trap that gave up on speed.
Definition.com
License plate reader (n.) is a camera bought to catch stolen cars and kept because it catches everyone.
Definition.com
License plate reader (n.) reads nothing but your plate and forgets nothing about your week.
Definition.com
License plate reader (n.) is a toll booth that stopped collecting money and started collecting whereabouts.
Definition.com
License plate reader (n.) is a tracker you never have to wear because the car wears it for you.