Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

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Multi-word Results
make sure to establish (something) as certain, or to make oneself certain with regard to something.
sure thing (informal) something considered certain to happen, succeed, win, or the like. [2 definitions]
sure-fire (informal) certain to be successful; foolproof.
sure-footed not liable to trip, stumble, or fall.