assure

Reading level: medium

Estimated CEFR level: A2 — Elementary

Estimated from word frequency; not an official CEFR classification.

Definition

verb make certain of
verb inform positively and with certainty and confidence
verb assure somebody of the truth of something with the intention of giving the listener confidence

From Old French asseurer (Modern French assurer), from Latin ad- + securus (“secure”). Cognate with Spanish asegurar. Doublet of assecure.

"I assure you it is," persisted Harris. — Three men on the bummel, Jerome K. (Jerome Klapka) Jerome
But I assure you I like it. — John Gayther's Garden and the Stories Told Therein, Frank R. Stockton
"I like it," Doctor Hilary assured him. — Antony Gray,—Gardener, LM (Leslie Moore)

guarantee, ensure, insure, secure

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