/ Dictionary / Index B big cheese: Meaning and Definition of Find definitions for: big' cheese' Pronunciation: [key] — Older Slang. Older Slang. an influential or important person: Who's the big cheese around here? Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. big casino big-cone pine Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language