harden Syllabification: (hard·en)Pronunciation: /ˈhärdn/Translate harden | into French | into German | into Italian | into Spanish Definition of harden verb make or become hard or harder: [no object]:wait for the glue to harden [with object]:bricks that seem to have been hardened by firing make or become more severe and less sympathetic: [with object]:she hardened her heart make or become tougher and more clearly defined: [no object]:suspicion hardened into certainty [no object] (of prices of stocks, commodities, etc.) rise and remain steady at a higher level. Phrases hardening of the arteries another term for arteriosclerosis.Phrasal Verbs harden something off inure a plant to cold by gradually increasing its exposure to it. Derivatives hardener noun harden in other Oxford dictionaries Definition of harden in the British & World English dictionary
