Insure and Ensure are similar sounding words but with completely different meanings. Let’s See the difference of meanings between Insure and Ensure.
Insure is an action verb. Insure is an act of assuring a compensation or an alternative for a thing in the event of its absence or failure.
Example: My watch is insured against theft/accidents.
Ensure is also an action verb. Ensure is an act of assuring something to happen for certain sooner or later.
Example: Generator is installed in the hospital to ensure uninterrupted power supply during power shutdowns.