- 1boost something to make something increase, or become better or more successful to boost exports/profits The movie helped boost her screen career. to boost somebody’s confidence/morale Getting that job did a lot to boost his ego (= make him feel more confident).
- 2boost something (North American English, informal, becoming old-fashioned) to steal something Word Origin early 19th cent. (originally US, in sense (4)): of unknown origin.Extra examples The new service helped boost pre-tax profits by 10%. The total was boosted to nearly $200 by donations from parents. an attempt to boost the number of barn owls living in the wild to boost her chances of winning next month’s election A last-minute rush by Christmas shoppers boosted sales. Getting that job did a lot to boost his ego. to boost productivity/sales/spending to boost somebody’s morale/career/confidence
BrE BrE//buːst//; NAmE NAmE//buːst//Verb Forms present simple I / you / we / they boost
BrE BrE//buːst//; NAmE NAmE//buːst//he / she / it boosts
BrE BrE//buːsts//; NAmE NAmE//buːsts//past simple boosted
BrE BrE//ˈbuːstɪd//; NAmE NAmE//ˈbuːstɪd//past participle boosted
BrE BrE//ˈbuːstɪd//; NAmE NAmE//ˈbuːstɪd//-ing form boosting
BrE BrE//ˈbuːstɪŋ//; NAmE NAmE//ˈbuːstɪŋ//