Prevent/prɪˈvent/ Definition 1 of 3Pro Tip 1/3Proactive Measures Prevent often implies taking action before a potential problem arises. Vaccinations can prevent certain illnesses. Pro Tip 2/3Safety Focus Use 'prevent' when discussing measures to ensure safety and avoid harm. Wearing a seatbelt prevents many injuries in car accidents. Pro Tip 3/3Not Just Stop 'Prevent' is more than just stopping; it's about proactively avoiding future issues. Studying regularly prevents last-minute exam stress.