assure
/əˈʃʊɹ/ verb
Forms assures assuring assured
- verb (transitive) To make sure and secure; ensure.
- verb (transitive) To give (someone) confidence in the trustworthiness of (something). [with that; or with of] “I assure you that the program will work smoothly when we demonstrate it to the client.”
- verb (obsolete) To guarantee, promise (to do something).
- verb (transitive) To reassure.
Synonyms
guarantee ensure insure secure tell see check see to it control ascertain reassure promise
Etymology
From Old French asseurer (Modern French assurer), from Latin ad- + securus (“secure”). Cognate with Spanish asegurar. Doublet of assecure.
Webster’s 1913
- verb To make sure or certain; to render confident by a promise, declaration, or other evidence.
- verb To declare to, solemnly; to assert to (any one) with the design of inspiring belief or confidence.
Etymology [OF. aseürer, F. assurer, LL. assecurare; L. ad + securus secure, sure, certain. See Secure, Sure, and cf. Insure.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “assure”, CC BY-SA 4.0. Details