Definition of cracker in English:


Line breaks: crack¦er
Pronunciation: /ˈkrakə


1A person or thing that cracks.
More example sentences
  • Any right minded code cracker would know what he just told me.
  • The remaining states, like Minnesota, provide lots of fun for the determined code cracker.
  • It was six feet tall and held a rocket launcher in one claw and a giant stainless steel shell cracker in the other.
1.1An installation for cracking hydrocarbons: a catalytic cracker
More example sentences
  • The company suffered a series of accidents, culminating in a blaze at its catalytic cracker.
  • The catalytic cracker takes a number of feedstocks, including heavy gas and residue, from the lubricant treatment plant.
  • Light olefins from the fluid catalytic cracker are processed in either hydrofluoric or sulfuric acid units.
1.2A person who breaks into a computer system, typically for an illegal purpose.
More example sentences
  • The case studies are in-depth descriptions of how three crackers have broken into computers.
  • Sure, no electronic voting system is yet safe enough to withstand computer crackers.
  • On infected machines, it opens a back door that allows a cracker to control the computer using IRC.
2A decorated paper cylinder which, when pulled apart, makes a sharp noise and releases a small toy or other novelty: a Christmas cracker
More example sentences
  • And after their roast turkey dinner, the gang pulled the crackers and donned the paper hats.
  • The cracker fell apart and just hung there all limp in my hand.
  • The gathering enjoyed a beautiful four course meal and enjoyed pulling Christmas crackers across the tables.
2.1A firework that explodes with a sharp noise.
More example sentences
  • At 7: 47 there were crackers exploding everywhere.
  • The bombardment by bangers, crackers and fireworks was such that there was hardly a silent minute in any town.
  • Boisterous crowds dispelled the darkness of night with fireworks as crackers shattered the stillness of the night.
3A thin dry biscuit, typically eaten with cheese: the sausage is delicious on hot toast or crackers
More example sentences
  • She grabbed a few crackers and cream cheese, grabbed her backpack, and hiked upstairs to start.
  • Spread smoked salmon and low-fat cream cheese on whole wheat crackers or pith rounds and top with fresh dill.
  • He brought the wine. I organised the cheese and crackers.
3.1A light crisp made of rice or tapioca flour: prawn crackers
More example sentences
  • They threw back local smoked mussels served on crisp rice crackers with mayonnaise.
  • Seaweed is commonly eaten by the Japanese in a variety of snack foods, including tiny crisp rice crackers.
  • This neighbour boy eats sweet potato and rice crackers.
4British informal A fine example of something: don’t miss this cracker of a CD
More example sentences
  • An absolute cracker of a match is confidently expected.
  • In the other semi-final, Bishopthorpe edged out Pickering Town on penalties after a cracker of a match.
  • Oh, I have a cracker of a photo of the two of us after a massive goodbye cry, when I left Australia 10 years ago.
4.1An attractive person, especially a woman: you look a cracker
5US offensive another term for poor white.

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