/ Dictionary / Index P PLC: Meaning and Definition of Find definitions for: PLC Pronunciation: [key] — Brit. Brit. public limited company. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Plaza Lasso plea Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language