to save bit by bit or accumulate gradually over time

to save up money

bustling with many people

to gather closely together

to gather, assemble, or cluster together in one place

(dialect) to muster strength, exert oneself, or strive

to accumulate money or property through thrift or effort over time.

to assemble

to gather or assemble together into a group or mass

to accumulate a sufficient amount of money through saving