/ Dictionary / Index B boost: Meaning and Definition of Find definitions for: boost Pronunciation: (bst), [key] — v.t. to lift or raise by pushing from behind or below. to advance or aid by speaking well of; promote: She always boosts her hometown. to increase; raise: to boost prices; to boost the horsepower of the car by 20 percent. to steal, esp. to shoplift: Two typewriters were boosted from the office last night. —v.i. to engage in stealing, esp. shoplifting. —n. an upward shove or raise; lift. an increase; rise: There's been a tremendous boost in food prices. an act, remark, or the like, that helps one's progress, morale, efforts, etc.: His pep talk was the boost our team needed. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: boost (Thesaurus) boorish booster Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language