vt to confirm; to make certain or secure.
2. assure ·vt to affiance; to betroth.
3. assure ·vt to make sure or certain; to render confident by a promise, declaration, or other evidence.
4. assure ·vt to declare to, solemnly; to assert to (any one) with the design of inspiring belief or confidence.
5. assure ·vt to insure; to covenant to indemnify for loss, or to pay a specified sum at death. ·see insure.