anything indispensable; "food and shelter are necessities of life"; "the essentials of the good life"; "allow farmers to buy their requirements under favorable conditions"; "a place where the requisites of water fuel and fodder can be obtained"
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"
a performance (or series of performances) at a public presentation; "the program lasted more than two hours"
a system of projects or services intended to meet a public need; "he proposed an elaborate program of public works"; "working mothers rely on the day care program"
(computer science) a sequence of instructions that a computer can interpret and execute; "the program required several hundred lines of code"
an announcement of the events that will occur as part of a theatrical or sporting event; "you can't tell the players without a program"
arrange a program of or for; "program the 80th birthday party"