けち・節約

thrift

 noun/θrɪft/θrɪft/[uncountable]​(approving) /節約･節約家

the habit of saving money and spending it carefully so that none is wasted/SEE ALSO spendthrift

thrifty

 adjective/ˈθrɪfti/ˈθrɪfti/(approving)​careful about spending money and not wasting things/SYNONYM frugal

He was brought up to be thrifty and never to get into debt.