descend

move or fall downward

depart

to leave.

deliver

to bring something to someone.

crush

to damage something by squeezing it very hard.

crumble

break or fall apart into small fragments, especially over a period of time as part of a process of deterioration

cross

to go over something, from one side to another.

cover

to put something over or on something else.

conway's Game of Life

a cellular automaton devised by the British mathematician John Horton Conway in 1970