ensure
make certain (general) guarantee (formal) assure (formal) see to it (colloquial) make sure (neutral) secure (formal)
ensure against risk
insure (finance) indemnify (legal) protect (general) cover (insurance)
cause to be
effect (formal) bring about (neutral) produce (neutral) result in (neutral)
related nouns
assurance (state) insurance (finance) guarantee (promise) safeguard (protection) certainty (state)
ensure
guarantee assure secure make certain (phrase) make sure (phrase) see to it (phrase)
endanger jeopardize risk imperil threaten
verify confirm check validate certify ascertain double-check safeguard protect
guarantor insurer underwriter protector guardian
safety security quality success compliance accuracy survival supply
contract policy warranty guarantee checklist protocol audit bond collateral
make sure (phrase) see that (phrase) take care (phrase) nail down (informal) lock in (informal)
certainty assurance certainty (certainty) confidence reliability dependability
insurance office courtroom factory floor contract lab audit inspection
checkmark stamp seal signature handshake alarm (warning)
to make certain that something will happen or will be the case, a bit formal, more for writing than for talking
ensure (neutral)
guarantee (stronger)
secure (formal)
assure (often persons)
safeguard (protective)
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