/ Dictionary / Index B boghead coal: Meaning and Definition of Find definitions for: bog'head coal' Pronunciation: (bog'hed"), [key] compact bituminous coal that burns brightly and yields large quantities of tar and oil upon distillation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Boghazköy bog hole Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language