The best replacement for license plate is licence plate.

The best alternatives to license plate are rated as following:
★★★★★  licence plate
★★★  number plate
★★★  decal

Your alternative for license plate is not listed? Suggest!
Speaking about license plate, one probably shouldn't forget about vin.

Other search terms related to license plate and their ratings are:
★★★★★ vin
★★★★★ turn signals
★★ vin number
You have in mind a companion for license plate and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of license plate in all years. Click on graph for more.
license plate
licence plate
number plate