collection vs collation

collection and collation both are nouns.

Word	Noun	Adjective	Verb	Adverb
collection	Yes	No	No	No
collation	Yes	No	No	No

As nouns, collation is a hyponym of collection; that is, collation is a word with a more specific, narrower meaning than collection:

collection (noun)	collation (noun)
the act of gathering something together	careful examination and comparison to note points of disagreement
a publication containing a variety of works	assembling in proper numerical or logical sequence
request for a sum of money	a light informal meal
several things grouped together or considered as a whole