function vs program

function and program both are nouns.

Word	Noun	Adjective	Verb	Adverb
function	Yes	No	Yes	No
program	Yes	No	Yes	No

function (noun)	program (noun)
the actions and activities assigned to or required or expected of a person or group	a performance (or series of performances) at a public presentation
what something is used for	a series of steps to be carried out or goals to be accomplished
a set sequence of steps, part of larger computer program	a system of projects or services intended to meet a public need
a formal or official social gathering or ceremony of people	an announcement of the events that will occur as part of a theatrical or sporting event
a formal or official social gathering or ceremony	a radio or television show
(mathematics) a mathematical relation such that each element of a given set (the domain of the function) is associated with an element of another set (the range of the function)	(computer science) a sequence of instructions that a computer can interpret and execute
a relation such that one thing is dependent on another	a document stating the aims and principles of a political party
	an integrated course of academic studies

function (verb)	program (verb)
perform duties attached to a particular office or place or function	arrange a program of or for
perform as expected when applied	write a computer program
serve a purpose, role, or function