/ Dictionary / Index S special session: Meaning and Definition of Find definitions for: spe'cial ses'sion Pronunciation: [key] a session, as of a legislature or council, called to meet in addition to those held regularly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. special rule special staff Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language