celebration vs function

celebration and function both are nouns.

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

As nouns, function is a hypernym of celebration; that is, function is a word with a broader meaning than celebration:

celebration: a joyful occasion for special festivities to mark some happy event
function: a formal or official social gathering or ceremony of people

Other hypernyms of celebration include affair, occasion, social affair, social function, social gathering, social occasion.

celebration (noun)	function (noun)
any joyous diversion	the actions and activities assigned to or required or expected of a person or group
the public performance of a sacrament or solemn ceremony with all appropriate ritual	what something is used for
a joyful occasion for special festivities to mark some happy event	a set sequence of steps, part of larger computer program
	a formal or official social gathering or ceremony of people
	a formal or official social gathering or ceremony
	(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)
	a relation such that one thing is dependent on another

celebration (verb)	function (verb)
	perform duties attached to a particular office or place or function
	perform as expected when applied
	serve a purpose, role, or function