boost (bo?ost)v. boost·ed, boost·ing, boosts v.tr.1. To raise or lift by pushing up from below. See Synonyms at lift.2. a. To increase; raise: boost prices; efforts to boost participation in the program.b. To assist in further development or progress: a bill intended to boost local charities.3. To stir up enthusiasm for; promote vigorously: boosted their school with rallies and fund drives.4. Electricity To increase the voltage of (a circuit).5. Slang To steal or rob, especially by shoplifting or pickpocketing.v.intr. Slang To engage in stealing, especially shoplifting or pickpocketing.n.1. A push upward or ahead.2. An encouraging act or comment. 3. An increase: a big boost in salary.[Perhaps from dialectal boostering, bustling, active.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.boost (bu?st) n1. encouragement, improvement, or help: a boost to morale. 2. an upward thrust or push: he gave him a boost over the wall. 3. an increase or rise: a boost in salary. 4. a publicity campaign; promotion5. (Aeronautics) the amount by which the induction pressure of a supercharged internal-combustion engine exceeds that of the ambient pressurevb (tr) 6. to encourage, assist, or improve: to boost morale. 7. to lift by giving a push from below or behind8. to increase or raise: to boost the voltage in an electrical circuit. 9. (Commerce) to cause to rise; increase: to boost sales. 10. to advertise on a big scale11. (Aeronautics) to increase the induction pressure of (an internal-combustion engine) above that of the ambient pressure; supercharge[C19: of unknown origin]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014boost (bust) v.t. 1. to lift or raise by pushing from behind or below. 2. to advance or aid by speaking well of; promote. 3. to increase; raise: to boost prices. n. 4. an upward shove or raise; lift. 5. an increase; rise. 6. an act, remark, or the like, that helps one’s progress, morale, efforts, etc. [1805?15, Amer.] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.boostPast participle: boostedGerund: boostingImperativePresentPreteritePresent ContinuousPresent PerfectPast ContinuousPast PerfectFutureFuture PerfectFuture ContinuousPresent Perfect ContinuousFuture Perfect ContinuousPast Perfect ContinuousConditionalPast ConditionalImperativeboostboostPresentI boostyou boosthe/she/it boostswe boostyou boostthey boostPreteriteI boostedyou boostedhe/she/it boostedwe boostedyou boostedthey boostedPresent ContinuousI am boostingyou are boostinghe/she/it is boostingwe are boostingyou are boostingthey are boostingPresent PerfectI have boostedyou have boostedhe/she/it has boostedwe have boostedyou have boostedthey have boostedPast ContinuousI was boostingyou were boostinghe/she/it was boostingwe were boostingyou were boostingthey were boostingPast PerfectI had boostedyou had boostedhe/she/it had boostedwe had boostedyou had boostedthey had boostedFutureI will boostyou will boosthe/she/it will boostwe will boostyou will boostthey will boostFuture PerfectI will have boostedyou will have boostedhe/she/it will have boostedwe will have boostedyou will have boostedthey will have boostedFuture ContinuousI will be boostingyou will be boostinghe/she/it will be boostingwe will be boostingyou will be boostingthey will be boostingPresent Perfect ContinuousI have been boostingyou have been boostinghe/she/it has been boostingwe have been boostingyou have been boostingthey have been boostingFuture Perfect ContinuousI will have been boostingyou will have been boostinghe/she/it will have been boostingwe will have been boostingyou will have been boostingthey will have been boostingPast Perfect ContinuousI had been boostingyou had been boostinghe/she/it had been boostingwe had been boostingyou had been boostingthey had been boostingConditionalI would boostyou would boosthe/she/it would boostwe would boostyou would boostthey would boostPast ConditionalI would have boostedyou would have boostedhe/she/it would have boostedwe would have boostedyou would have boostedthey would have boostedCollins English Verb Tables © HarperCollins Publishers 2011