Third-person singular simple present indicative form of reassure.(verb)
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Use "reassures" in a sentence
"But a little looksy at the label reassures that is perfectly alright to have your cake and eat it too!"
"Next Darwin reassures us that his general theory of evolution, and especially the mechanism of Natural Selection are true, and have brought us to the current point of development."
"The word reassures us that there is a new heaven and a new earth and also tells us that everything which is pure and holy and good and lovely will survive (like gold purified in a fire), and that's very reassuring."