IPA: /ˈseɪ.vər/
KK: /ˈseɪvər/
A person who saves money or resources, often by being careful with spending.
She is a saver who always looks for discounts before making a purchase.
Saver → It is formed from "save" (from Old French *sauver*, meaning to rescue or preserve) and "-er" (meaning a person who). A saver is a person who saves or preserves something.
Think of someone who 'rescues' ('save') something — the '-er' just means a person. A saver is someone who saves.