ensure

UK: ɪnˈʃʊə | US: ɪnˈʃʊr

Definition

  1. vt. to make certain that something will happen or be the case

  2. vt. to secure or guarantee something against risk

Structure
en <make>sure <certain>en <make>sure <certain>
Etymology

The word "ensure" entered English in the late 14th century from Old French "enseurer," combining "en-" (a causative prefix) and "seur" (safe/certain). It originally meant "to make safe" and later evolved to emphasize guaranteeing outcomes. The logic reflects transforming uncertainty ("en-") into certainty ("sure").

Examples

  1. Double-check the locks to ensure the house is secure.

  2. The contract ensures fair payment for all workers.

  3. Vaccinations help ensure public health safety.

  4. She took extra steps to ensure the project’s success.

  5. The warranty ensures free repairs for two years.