kəˈlæps ˈkɹæk ˈʌp ˈkɹækɪŋ ˈkɹɛvɪs ˈfɪʃ.ə(ɹ) ˈfɪʃ.ɚ ˈfɹæk.tʃə ɡəʊ ɡoʊ ɡəʉ ɡɐʉ kwɪp ˈsɪʃə(ɹ) snæp snæp tɒps tɑps tɔː(ɹ)ˈneɪ.dəʊ ʍɜːl ʍɝl ˈwaɪzˌkɹæk break into simpler molecules by means of heat The petroleum cracked reduce (petroleum) to a simpler compound by cracking become fractured; break or crack on the surface only The glass cracked when it was heated cause to become cracked heat and light cracked the back of the leather chair break suddenly and abruptly, as under tension The pipe snapped break partially but keep its integrity The glass cracked the act of cracking something pass through (a barrier) Registrations cracked through the 30,000 mark in the county a usually brief attempt he took a crack at it I gave it a whirl tell spontaneously crack a joke hit forcefully; deal a hard blow, making a cracking noise The teacher cracked him across the face with a ruler suffer a nervous breakdown make a sharp sound his fingers snapped make a very sharp explosive sound His gun cracked 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 gain unauthorized access computers with malicious intentions she cracked my password crack a safe a purified and potent form of cocaine that is smoked rather than snorted; highly addictive a narrow opening he opened the window a crack a blemish resulting from a break without complete separation of the parts there was a crack in the mirror witty remark 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 cleft a long narrow depression in a surface a chance to do something he wanted a shot at the champion