saver
Definitions
A person who habitually saves money or avoids waste.
A computer program that automatically replaces the screen display with moving images or patterns when the computer is inactive.
A person or thing that rescues someone or something from danger or loss.
Examples
She is a dedicated saver who puts a portion of her paycheck into a high-yield account every month.
The new energy-efficient lightbulb is a real money saver for homeowners looking to reduce their utility bills.
Synonyms
economizer hoarder thrifty person penny pincher frugal individual storer
Antonyms
spender squanderer wastrel profligate big spender spendthrift