| cracker | |
| 1. s. A dry, thin, crispy baked bread (usually salty or savoury, but sometimes sweet, as in the case of graham crackers and animal crackers). | |
| 2. s. A short piece of twisted string tied to the end of a whip that creates the distinctive sound when the whip is thrown or cracked. | |
| 3. s. A firecracker. | |
| 4. s. A person or thing that cracks, or that cracks a thing (e.g. whip cracker; nutcracker). | |
| 5. s. The final section of certain whips, which is made of a short, thin piece of unravelled rope and produces a cracking sound. | |
| 6. s. A Christmas cracker. | |
| 7. s. Refinery equipment used to pyrolyse organic feedstocks. If catalyst is used to aid pyrolysis it is informally called a cat-cracker | |
| 8. s. (slang) A fine thing or person (crackerjack). | |
| She's an absolute cracker! The show was a cracker! | |
| 9. s. An ambitious or hard-working person (i.e. someone who arises at the 'crack' of dawn). | |
| 10. s. (computing) One who cracks (i.e. overcomes) computer software or security restrictions. | |
| 11. s. (obsolete) A noisy boaster; a swaggering fellow. | |
| 12. s. (US, derogatory racial slur) An impoverished white person from the southeastern United States, originally associated with Georgia and parts of Florida; (by extension) any white person. | |
| 13. s. (US, Florida slang) A police officer. | |
| 14. s. A northern pintail, species of dabbling duck. | |
| 15. s. (obsolete) A pair of fluted rolls for grinding caoutchouc. | |
