/ Dictionary / Index B bolt-action: Meaning and Definition of Find definitions for: bolt-ac•tion Pronunciation: (bōlt'ak"shun), [key] — adj. (of a rifle) equipped with a manually operated sliding bolt. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bolt bolt boat 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