1. Increase or raise significantly
   "boost the voltage in an electrical circuit";
   - advance, supercharge
    
2. Give help (to improve, increase, etc); be beneficial to
   "The tax cut will boost the economy"
    
3. Help to progress or develop by actively supporting or advocating
   "I am boosting the use of computers in the classroom";
   - promote, advance, further, encourage
    
4. Push or shove upward, as if from below or behind
   "The singer had to be boosted onto the stage by a special contraption"
    
5. [N. Amer, informal] Take by theft
   "He was going to boost the phone someone had left behind";
   - hook [informal], snitch [informal], thieve, cop [informal], knock off [informal], glom [N. Amer, informal], pilfer, cabbage [archaic, informal], purloin [informal], pinch [Brit, informal], abstract [informal], snarf [N. Amer, informal], swipe [informal], sneak [informal], filch [informal], nobble [Brit, informal], lift [informal], nick [Brit, informal], snatch [informal], whip [Brit, informal], blag [Brit, informal]

1. Something that increases confidence, energy, or motivation
   "Her words of encouragement gave him a boost before the interview";
   - encouragement, fillip
    
2. An increase or improvement in something
   "Sales got a boost from the holiday season"; "The economy needed a boost"
    
3. An increase in cost
   "they asked for a 10% boost in rates";
   - rise, hike, cost increase
    
4. The act of giving a push
   "he gave her a boost over the fence"

Derived forms: boosted, boosting, boosts

Type of: aid, assist, assistance, back up, help, increase, increment, push, pushing, rip [N. Amer, informal], rip off [informal], steal, support, thrust

Encyclopedia: Boost