frugality

Idioms (3)

• tighten your belt Neutral · CEFR B1
  To spend less money because you have less than before.
• tighten the purse strings Neutral · CEFR C1
  To become more careful and strict about spending money.
• penny wise, pound foolish Neutral · CEFR C1
  being careful with small amounts of money while wasting large amounts