Meaning of BOOST in English

BOOST

/ buːst; NAmE / verb , noun

■ verb [ vn ]

1.

to make sth increase, or become better or more successful :

to boost exports / profits

The movie helped boost her screen career.

to boost sb's confidence / morale

Getting that job did a lot to boost his ego (= make him feel more confident) .

2.

( NAmE , informal , becoming old-fashioned ) to steal sth

■ noun [ usually sing. ]

1.

something that helps or encourages sb/sth :

a great / tremendous / welcome boost

The tax cuts will give a much needed boost to the economy.

Winning the competition was a wonderful boost for her morale.

2.

an increase in sth :

a boost in car sales

3.

an increase in power in an engine or a piece of electrical equipment

4.

( especially NAmE ) an act of pushing sb up from behind :

He gave her a boost over the fence.

••

WORD ORIGIN

early 19th cent. (originally US, in sense 4): of unknown origin.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.