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English definition of “hard”

hard

adjective (SOLID)    /hɑːd/ US  /hɑːrd/
A2 not easy to bend, cut, or break: a hard surface There was a heavy frost last night and the ground is still hard. Heating the clay makes it hard. → Opposite softHard and firm softGrammar:HardHard is both an adjective and an adverb. When it is an adverb, it means ‘needing or using a lot of physical or mental effort’. It goes after the main verb:See more hardness     /-nəs/ noun [U] These alloys are characterized by their extreme hardness.Hard and firmWater in general
(Definition of hard adjective (SOLID) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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