crack

Crack frequently refers to:

• Crack, a fracture or discontinuation in a body
• Crack, in geology, a fracture (geology) in a rock
• Crack, short for crack cocaine, the freebase form of cocaine that can be smoked

Crack may also refer to:

Slang

• Crack, or (craic, Irish), Scottish, Northern English and Irish slang for 'fun', 'joke', 'gossip', or 'mood'.
• Crack, slang for an offensive word

Software

• Crack (password software), a UNIX/Linux password hacking program for systems administrators
• Software cracking, a computer program that modifies other software to remove or disable features usually related to digital rights management
• No-disc crack, software to circumvent Compact Disc and DVD copy protection

Other uses

• Cracking (chemistry), the process whereby complex organic molecules are broken down into simpler molecules
• Crack spread, the value difference between crude oil and oil products or between different oil products, usually expressed as a per-barrel value
• Password cracking, the process of recovering passwords from data stored in or transmitted by a computer system
• Safe cracking, the process of opening a safe without the combination or the key
• Security hacker, cracking a system to gain unauthorized access (sometimes mislabeled as "hacking").

六级/考研单词: seldom, fracture, geology, cocaine, gossip, mood, offend, hardware, password, hack, compute, modify, disable, digit, compact, whereby, organism, molecule, differentiate, crude, data, transmit