work together on a common enterprise of project; "The soprano and the pianist did not get together very well"; "We joined forces with another research group"
cooperate as a traitor; "he collaborated with the Nazis when they occupied Paris"
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"