/ Dictionary / Index C commercial bank: Meaning and Definition of Find definitions for: commer'cial bank' Pronunciation: [key] a bank specializing in checking accounts and short-term loans. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. commercial attaché commercial break Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language