Usage Note
Durire is an infrequent intransitive verb meaning to become hard or to harden over time. It is largely supplanted in everyday use by indurirsi (reflexive) or indurire (transitive/intransitive). When used, it takes essere as auxiliary in compound tenses. Learners will encounter it mainly in older literary texts.
Examples
"Il cemento durisce in poche ore."
Natural Translation
The cement hardens in a few hours.
Related Words
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