/ Dictionary / Index B B.S.S.: Meaning and Definition of Find definitions for: B.S.S. Pronunciation: [key] Bachelor of Secretarial Science. Bachelor of Social Science. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. B.S.R.T. B.S.S.A. Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language