/ Dictionary / Index I indicia: Meaning and Definition of Find definitions for: in•di•ci•a Pronunciation: (in-dish'ē-u), [key] — sing. -ci•um. a postal marking used rather than a stamp or a regular cancellation on each item in a large shipment of prepaid mail. Often, an indicium of “bulk mail.” a printed message or instruction, esp. one stamped on a package:an indicium of “bulk mail.” an indication or token. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. indices indicial Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language