boost

1 verb (T)

1 to increase something such as production, sales etc because they are not as high as you want them to be: The advertising campaign is intended to boost sales.

2 boost sb's confidence/morale/ego to make someone feel more confident and less worried: He regularly phones to boost her morale.

3 to advertise something by discussing or praising it: a special promotion to boost their new product

4 also boost up to help someone reach a higher place by lifting them: Can you boost me up onto the horse?

2 noun

1 (singular) something that helps someone be more successful and confident, or that helps something increase or improve

(+ to): Last night's victory was a tremendous boost to the team. | give (sb/sth) a boost: Being chosen to attend the conference gave Matthew a real boost. | ego/morale boost (=an increase in confidence): He wanted a dizzy blonde as a boost to his ego.

2 (U) an increase in the amount of power available to a rocket 1 (1), piece of electrical equipment etc

3 give sb a boost(up) to lift someone so that they can reach a higher place: If I give you a boost up, could you reach the window?