function vs social occasion

function and social occasion both are nouns.

Word	Noun	Adjective	Verb	Adverb
function	Yes	No	Yes	No
social occasion	Yes	No	No	No

As nouns, function and social occasion are synonyms defined as:

function and social occasion: a formal or official social gathering or ceremony of people

Other synonyms of function include affair, occasion, social affair, social function, social gathering.

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

function: a formal or official social gathering or ceremony
social occasion: a formal or official social gathering or ceremony of people

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

function (noun)	social occasion (noun)
the actions and activities assigned to or required or expected of a person or group	a formal or official social gathering or ceremony of people
what something is used for
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

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