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Read more in this article about some frequently asked questions and fun facts related to our definitions.

One of our readers recently asked about the differences between assure, ensure, and insure. All three of these words ultimately derive from the Latin word sēcūrus meaning “safe.” As with many words that share ancestors, these terms’ meanings overlap thematically, but they’re not necessarily interchangeable. Here’s a look at the key differences. Assure was the first of the three to enter English with a reflexive sense of “to have …