1. provides insurance coverage for something or someone against loss, damage, or risk
Usage: third person singular present tense of ‘insure’
2. makes certain that something will happen or be the case
Usage: third person singular present tense of ‘insure’

Examples

• The company insures all its vehicles against theft and damage.
• She insures her jewelry with a specialized policy.
• This policy insures the homeowner for up to $500,000.
• The new security system insures that no one can enter without permission.
• Regular maintenance insures the equipment will last longer.
• He always double-checks his work to insure accuracy.