Bump or spike (8)
I believe the answer is:
increase
(Other definitions for increase that I've seen before include "Grow, add to" , "What's more" , "Profit" , "Add, make bigger" , "Become bigger or greater in amount" .)
I believe the answer is:
increase
(Other definitions for increase that I've seen before include "Grow, add to" , "What's more" , "Profit" , "Add, make bigger" , "Become bigger or greater in amount" .)