/ Thesaurus / L Synonyms of l plate Find synonyms for: Noun1. L-plate, plateusage: a square plate bearing the letter L that is attached to both ends of a car to indicate that the driver is a learnerWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: grimace Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language