Definitions
be careful or certain to do something; make certain of something
Word origin
From Old French asseurer (Modern French assurer), from Latin ad- + securus (“secure”). Cognate with Spanish asegurar. Doublet of assecure.
Used in a sentence
“I assure you that the program will work smoothly when we demonstrate it to the client.”
“He assured of his commitment to her happiness.”
“That as a law for euer should endure; / Which to obserue in word of knights they did assure.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer2 curated clues
01“Give confidence”6 letters
02“Promise confidently”6 letters
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