big, great, major, tremendous | much-needed, welcome | unexpected | confidence, financial, morale, psychological

give sb, provide (sb with) | need | get, receive

~ for
a boost for British products

~ in
a big boost in exports

~ to
a boost to the economy

considerably, greatly, substantially

help (to)
The new service helped boost pre-tax profits by 10%.

to
The total was boosted to nearly £200 by donations from parents.