/ Dictionary / Index I Iceni: Meaning and Definition of Find definitions for: I•ce•ni Pronunciation: (ī-sē'nī), [key] — n. (used with a sing. or pl. v.) an ancient Celtic tribe of eastern England, whose queen, Boadicea, headed an insurrection against the Romans in a.d. 61. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ice needles ice-out Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language