DictionaryAI

cracker

noun
USKRAK-ur/ˈkɹækə(ɹ)/KRA-kuh/ˈkɹækə(ɹ)/

Pluralcrackers

14 meanings of cracker

Practice

  1. 1
    dry biscuitnouncountable
    A crisp, thin baked bread that is dry in texture and usually salty or savory, though some, such as graham and animal crackers, are sweet.

    He spread peanut butter on a cracker for a quick snack.

    Grandma always kept a tin of salted crackers next to the soup pot.

    UsageUsually savory, unlike a cookie. In British English crackers can also be called biscuits, as in cheese and biscuits.

    Similarbiscuit

  2. 2
    fireworknouncountable
    A small firework that explodes with a loud bang; a firecracker.

    A cracker went off under the window, and the dog bolted under the bed.

    Street vendors sold long strings of crackers for the Lunar New Year festival.

    Similarfirecracker, banger

  3. 3
    computer hackernouncountable
    A person who defeats the protection built into software or gets around computer security restrictions.

    Within a week of release, crackers had stripped the license check from the new design software.

    The bank hired a security firm after a cracker broke into its customer database.

    UsageIn everyday talk hacker is the usual word for an intruder; many programmers prefer cracker for it.

    Similarhacker

    Note

    The word keeps company with piracy too: early software pirates and crackers shared a cause, and a system cracker is someone who breaks into a computer system.

    Checked 1 Nov 2026 · 1 fact

    • Early software pirates and crackers shared opposition to restrictions on copying software. en.wiktionary.org
  4. 4
    white person (insult)nounderogatoryethnicoffensiveslurUScountable
    An offensive term for an impoverished white person from the southeastern United States, originally one from Georgia or parts of Florida; by extension, any white person.

    UsageBest kept to quotation or to discussion of the word itself.

    Similarredneck, whitey, honky

    Note

    Readers meet it in song lyrics, film dialogue and novels such as Colson Whitehead's The Nickel Boys (2019), where it carries the speaker's contempt. Corn-cracker is used the same way. In Florida and Georgia some white people from long-settled families call themselves crackers with pride, but aimed at someone else the word is usually an insult.

    Checked 1 Nov 2026 · 4 facts

  5. 5
    prawn snacknouncountable
    A prawn cracker: a light, puffed snack made from starch and prawn and deep-fried until crisp.

    At the Chinese restaurant, I took a pink prawn cracker from the basket, and it melted on my tongue.

    The waiter set down a basket of prawn crackers, light and crisp, and they were gone within minutes.

  6. 6
    Christmas tubenouncountable
    A decorated paper tube that two people pull apart at Christmas, so that it snaps with a bang and releases a small gift.

    Everyone at the table crossed arms to pull their crackers at the same moment.

    The cracker snapped, and a tiny plastic puzzle fell into the gravy.

    UsageYou pull a cracker with another person; inside there is often a paper hat, a joke and a small toy.

  7. 7
    great thingnounslangAustraliaBritishIrelandNew Zealandcountable
    A thing or person regarded as excellent or especially impressive.

    What a cracker of a goal, curled into the top corner from outside the box!

    The new series is a cracker, easily the best thing on telly this year.

    UsageOften a cracker of a + noun, or a real cracker, an absolute cracker.

    Similarbelter, stunner, gem, corker

    Oppositedud

    Note

    Speakers in Britain, Ireland, Australia and New Zealand use this slang for anything first-rate, a person or a show alike. In football commentary a cracker on its own is a superb long-range shot or goal. It is a close cousin of crackerjack.

    Checked 1 Nov 2026 · 1 fact

  8. 8
    refinery machinenouncountable
    Refinery equipment that breaks down organic feedstocks by pyrolysis, or decomposition by heat; one that uses a catalyst to aid the process is informally called a cat-cracker.

    The company is building a new cracker to turn ethane into the raw materials for plastics.

    Heavy oil from the distillation column is fed to the crackers, which break it into lighter fuels.

  9. 9
    breaking toolnouncountable
    A person or thing that breaks something, as a nutcracker breaks nuts.

    A heavy steel cracker made short work of the lobster claws.

    Farmers ran the grain through a cracker to split the kernels before feeding it to the cattle.

    Note

    The agent-noun meaning: whatever cracks something open can be called a cracker. It is most at home in compounds and phrases naming what gets broken, written solid in nutcracker and open in a lobster and crab shell cracker. The same idea of breaking runs through the refinery machine and the software breaker.

    Checked 30 Oct 2026 · 4 facts

Practice

Can you tell the meanings of cracker apart? Answer 3 quick questions from this page, or write your own sentence and AI will check it.

Origin

Middle English craker meant "a boaster" and was formed from crack, a verb meaning "to break, snap, utter, make a sound," plus -er. The sense of a hard biscuit is first recorded in 1739, and in the 1980s the computing sense was pushed as an alternative to "hacker." Several origins have been proposed for its use for poor white Southerners: corn farmers (corncrackers) who cracked their own crops, Georgia and Florida settlers or plantation slave drivers who cracked whips, or the Elizabethan use of cracker for a braggart, which a letter from 1766 supports.

Checked 1 Nov 2026 · 9 facts

  • Middle English craker meant a boaster. en.wiktionary.org
  • Cracker was formed from crack, with the stated meanings, plus -er. en.wiktionary.org
  • The hard-biscuit sense is first recorded in 1739. en.wiktionary.org
  • The computing sense was promoted during the 1980s as an alternative to hacker. en.wiktionary.org
  • One proposed Southern origin connects the term with corn farmers cracking their crops. ans-names.pitt.edu
  • Another proposed origin connects the term with Georgia and Florida settlers cracking cattle-driving whips. en.wikipedia.org
  • A proposed origin connects the term with plantation slave drivers cracking whips. en.wikipedia.org
  • Cracker meant a braggart in Elizabethan times. en.wikipedia.org
  • A 1766 letter supports the connection between the Southern term and boasting. ulsterscotsacademy.com