crack

Adjective

• of the highest quality
  • an ace reporter
    
  • a crack shot
    
  • a first-rate golfer
    
  • a super party
    
  • played top-notch tennis
    
  • an athlete in tiptop condition
    
  • she is absolutely tops
    

Noun

• the act of cracking something

• a usually brief attempt
  • he took a crack at it
    
  • I gave it a whirl
    

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

• a blemish resulting from a break without complete separation of the parts
  • there was a crack in the mirror
    

• witty remark

• a chance to do something
  • he wanted a shot at the champion
    

• a sudden sharp noise
  • the crack of a whip
    
  • he heard the cracking of the ice
    
  • he can hear the snap of a twig
    

• a long narrow depression in a surface

• a narrow opening
  • he opened the window a crack
    

• a long narrow opening

Verb

• break into simpler molecules by means of heat
  • The petroleum cracked
    

• reduce (petroleum) to a simpler compound by cracking

• cause to become cracked
  • heat and light cracked the back of the leather chair
    

• tell spontaneously
  • crack a joke
    

• suffer a nervous breakdown

• gain unauthorized access computers with malicious intentions
  • she cracked my password
    
  • crack a safe
    

• break suddenly and abruptly, as under tension
  • The pipe snapped
    

• break partially but keep its integrity
  • The glass cracked
    

• pass through (a barrier)
  • Registrations cracked through the 30,000 mark in the county
    

• hit forcefully; deal a hard blow, making a cracking noise
  • The teacher cracked him across the face with a ruler
    

• make a sharp sound
  • his fingers snapped
    

• make a very sharp explosive sound
  • His gun cracked
    

• become fractured; break or crack on the surface only
  • The glass cracked when it was heated
    

Related words

• Synonyms: 
  ace , A-one , first-rate , super , tiptop , topnotch , top-notch , tops(p) , fracture , cracking , fling , go , pass , whirl , offer , crack cocaine , tornado , wisecrack , sally , quip , shot , snap , crevice , cranny , fissure , chap , gap , cleft , scissure , crack up , crock up , break up , collapse , break through ,