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Added 9 October 2026

ensure

/ɪnˈʃɔː(ɹ)/ verb

verb Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about ensure at Wordnik → Where our words come from →

Make certain of.
This nest egg will ensure a nice retirement for us
Be careful or certain to do something; make certain of something.
He verified that the valves were closed

Origin

From Middle English ensuren, from Anglo-Norman enseurer, from Old French seur (“sure”). Doublet of insure.

From Wiktionary, via Kaikki.org (CC BY-SA)

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