up crack in Wiktionary, the free dictionary. Crack frequently refers to: Crack, a fracture in a body Crack, a fracture (geology) in a rock Crack, short...

Crack cocaine, commonly known simply as crack, and also known as rock, is a free base form of the stimulant cocaine that can be smoked. Crack offers a...

The crack epidemic was a surge of crack cocaine use in major cities across the United States throughout the entirety of the 1980s and the early 1990s...

Look up cracking in Wiktionary, the free dictionary. Cracking may refer to: Cracking, the formation of a fracture or partial fracture in a solid material...

excerpt from "Jah War" Problems playing this file? See media help. The Crack is the debut album by English punk rock band The Ruts, released in 1979...

of the propagation of cracks in materials. It uses methods of analytical solid mechanics to calculate the driving force on a crack and those of experimental...

Crack the Skye is the fourth studio album by American heavy metal band Mastodon, released on March 24, 2009, through Reprise, Sire and Relapse Records...

Century Crack is a 120 ft (40m) long offwidth roof crack climb in the White Rim Sandstone, Canyonlands National Park, Utah, graded at 5.14b (8c). It is...

Joint cracking is the manipulation of joints to produce a sound and related "popping" sensation. It is sometimes performed by physical therapists, chiropractors...

residents.[citation needed] In some cases, enraged citizens have burned crack houses to the ground, in hopes that by destroying the sites for drug operations...