/ Dictionary / Index W whale oil: Meaning and Definition of Find definitions for: whale' oil" Pronunciation: [key] oil rendered from whale blubber, formerly widely used as a fuel for lamps and for making soap and candles. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Whalen whaler Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language