Science, technology and mathematics

• Automotive:
• Boost, positive manifold pressure in cars, see turbocharger#Boost threshold.
• a loose term for turbo or supercharger
• A slang term meaning to start a vehicle, see jump start (vehicle)
• Lorentz boost, a type of Lorentz transformation
• The boost phase of the flight of a ballistic missile is the first phase, in which it is lifted and accelerated by a rocket
• An electrical circuit variation of a DC to DC converter, which increases (Boosts) the voltage.

Computer science and engineering

• Boost C++ Libraries, a set of free peer-reviewed portable C++ libraries
• Boosting, a technique used in machine learning algorithms
• Boost converter, a type of power supply

Food and drink

• Boost (health food), a chocolate flavored drink produced by GlaxoSmithKline
• Boost (chocolate), a chocolate bar produced by Cadbury
• Boost (drink) An Energy Drink from the UK
• Boost (retail outlet), a fresh juice outlet in Australia
• Boost (beverage) A nutritional energy beverage from Novartis

Other

• Boost Mobile, a division of Nextel Communications and Telecom New Zealand
• To boost, a slang term referring to theft
• To boost, to strengthen, elevate, or promote something; see booster
• Boost it, a slang term which means, quickly go somewhere
• Boost (comics), a Marvel Comics character