Fissure

• a long narrow cleft

• a narrow opening

• a long narrow depression in a surface

• a sudden sharp noise

• a chance to do something

• witty remark

• a blemish resulting from a break without complete separation of the parts

• a purified and potent form of cocaine that is smoked rather than snorted; highly addictive

• a usually brief attempt

• the act of cracking something

• of the highest quality

• become fractured; break or crack on the surface only

• make a very sharp explosive sound

• make a sharp sound

• hit forcefully; deal a hard blow, making a cracking noise

• pass through (a barrier)

• break partially but keep its integrity

• break suddenly and abruptly, as under tension

• gain unauthorized access computers with malicious intentions

• suffer a nervous breakdown

• tell spontaneously

• cause to become cracked

• reduce (petroleum) to a simpler compound by cracking

• break into simpler molecules by means of heat

• a gap between cloud masses

• a narrow fissure in rock

• a personal or social separation (as between opposing factions)

• a split or indentation in something (as the palate or chin)

• a long narrow cleft

• split or divided

• having one or more indentations reaching nearly to the midrib