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Assure vs. Insure vs. Ensure

Assure means “to convince” or “to guarantee” and usually takes a direct object.

Example: If we leave two hours early, I assure you that we will arrive at the concert on time.

Insure means “to guard against loss.”

Example: Before he could leave for his trip, Steve had to insure his car against theft.

Ensure means “to make certain.”

Example: Our company goes to great lengths to ensure that every product that leaves the warehouse is of the highest quality.

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