Translation

抑止力 / 抑止策 / 思いとどまらせるもの

Meaning

A deterrent is something that makes people less likely to do an unwanted action because it creates fear, cost, risk, or inconvenience. It is the noun form related to deter. The trap is saying a deter instead of a deterrent.

Examples

• 高い罰金は危険運転への抑止力になります。
  High fines can be a deterrent to dangerous driving.
• 玄関のライトは泥棒への簡単な抑止策です。
  A light at the door is a simple deterrent against burglars.