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English definition of “hard”

hard

adjective uk   /hɑːd/ us    /hɑːrd/

hard adjective (SOLID)

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
Hard and firm

hard adjective (DIFFICULT)

A1 difficult to understand, do, experience, or deal with: There were some really hard questions in the exam. It's hard to say which of them is lying. It's hard being a single mother. Her handwriting is very hard to read. He's a hard man to please. The topics get harder later in the course. I feel sorry for the kids, too - they've had a hard time.
Opposite
Difficult to understandComplicated and difficult to doPuzzle and confuseComplicated and difficult to doDifficult to understand

hard adjective (USING EFFORT)

B1 needing or using a lot of physical or mental effort: Go on - give it a good hard push! It was hard work on the farm but satisfying.Complicated and difficult to doDifficult to understand

hard adjective (SEVERE)

B2 not pleasant or gentle; severe: You have to be quite hard to succeed in the property business. Ooh, you're a hard woman, Elaine! Our boss has been giving us all a hard time at work (= making our time at work difficult).Severe be hard on sb B2 to criticize someone severely, or to treat someone unfairly: Don't be too hard on him - he's new to the job.Severe

hard adjective (ALCOHOL)

[before noun] describes a drink that contains a high level of alcohol: hard liquorAlcohol - general words

hard adjective (WATER)

refers to water that contains a high level of minerals that prevent soap from cleaningWater in general

hard adjective (CLEAR)

[before noun] able to be proved: hard facts/evidenceCertaintyConfidence and self-assurance

hard adjective (WEATHER)

describes a time when there is bad weather: We had a very hard winter last year.Describing bad weather
hardness
noun [U] uk   /-nəs/ us  
These alloys are characterized by their extreme hardness.Hard and firmWater in general

hard

adverb uk   /hɑːd/ us    /hɑːrd/

hard adverb (USING EFFORT)

A1 with a lot of physical or mental effort: Work hard and play hard, that's my motto. I'm not surprised he failed his exam - he didn't exactly try very hard!Effort and expending energyTrying and making an effort

hard adverb (WEATHER)

B1 If it rains or snows hard, it rains or snows a lot: It had been raining hard most of the afternoon.Describing bad weather
(Definition of hard from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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