collation vs comparison

collation and comparison both are nouns.

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

As nouns, comparison is a hypernym of collation; that is, comparison is a word with a broader meaning than collation:

collation: careful examination and comparison to note points of disagreement
comparison: the act of examining resemblances

Other hypernyms of collation include comparing.

collation (noun)	comparison (noun)
careful examination and comparison to note points of disagreement	the act of examining resemblances
assembling in proper numerical or logical sequence	qualities that are comparable
a light informal meal	relation based on similarities and differences