imperil /im-perˈil/ (formal)

To endanger

imperˈilment noun

• higher educations
• Higher grade
• highering
• higher mathematics
• highermost
• highers
• higher-up
• higher-ups
• highest
• high explosive
• high-explosive
• high explosives
• highfalutin
• highfaluting
• high fashion
• high fashions
• high feather
• high-fed
• high-feeding
• high fidelity
• high-fidelity
• high five
• high-five
• high-fived
• high fives