/ Dictionary / Index W whatsit: Meaning and Definition of Find definitions for: whats•it Pronunciation: (hwuts'it, hwots'-, wuts'-, wots'-), [key] — n. Informal. whatsis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. whatsis whatsoe'er Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language