/ Dictionary / Index B big end: Meaning and Definition of Find definitions for: big' end" Pronunciation: [key] — Mach. Mach. the end of a connecting rod or piston rod that is attached to a crankpin. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. big enchilada bigener Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language