<p><strong>Verb</strong></p><ul><li>to lift or raise by pushing from behind or below.</li><li>to advance or aid by speaking well of; promote.</li><li>to increase; raise.</li><li>to administer a booster shot to.</li><li>Slang: to steal, especially to shoplift.</li></ul><p><strong>Noun</strong></p><ul><li>an upward shove or raise; lift.</li><li>an increase; rise: There's been a tremendous boost in food prices.</li><li>Synonyms: uptick, upswing, upsurge, growth, hike.</li><li>an act, remark, or the like, that helps one's progress, morale, efforts, etc.: His pep talk was the boost our team needed.</li></ul>