gather
/ˈga-t͟hər/
verb
to bring together : collect
pick, harvest
to pick up or amass as if by harvesting
tried to gather a crowd
noun
something brought together: such as
a puckering in cloth made by gathering
a mass of molten glass collected for use in glassblowing
idiom
to begin to be more popular and effective
The campaign has begun to gather momentum/strength.