/ Dictionary / Index P psst: Meaning and Definition of Find definitions for: psst Pronunciation: (pst), [key] — interj. (used to attract someone's attention in an unobtrusive manner.) Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. P.SS. PST Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language