v. boost·ed, boost·ing, boosts
1. To raise or lift by pushing up from below. See Synonyms at lift.
a. To increase; raise: boost prices; efforts to boost participation in the program; moved my wireless router away from obstructions in order to boost its signal.
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. Slang To steal or rob, especially by shoplifting or pickpocketing.
Slang To engage in stealing, especially shoplifting or pickpocketing.
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.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.