the sound of something crunching; "he heard the crunch of footsteps on the gravel path"
a critical situation that arises because of a shortage (as a shortage of time or money or resources); "an end-of-the year crunch"; "a financial crunch"
make crunching noises; "his shoes were crunching on the gravel"
chew noisily; "The children crunched the celery sticks"
a conflict of opposed ideas or attitudes or goals; "a collision of interests"
an accident resulting from violent impact of a moving object; "three passengers were killed in the collision"; "the collision of the two ships resulted in a serious oil spill"
(physics) an brief event in which two or more bodies come together; "the collision of the particles resulted in an exchange of energy and a change of direction"
any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter