collocate vs chunk

collocate is not a noun while chunk is a noun.

Word	Noun	Adjective	Verb	Adverb
collocate	No	No	Yes	No
chunk	Yes	No	Yes	No

As verbs, collocate and chunk are synonyms defined as:

collocate and chunk: group or chunk together in a certain order or place side by side

Other synonyms of collocate include lump.

collocate (noun)	chunk (noun)
	a compact mass
	a substantial amount

collocate (verb)	chunk (verb)
group or chunk together in a certain order or place side by side	group or chunk together in a certain order or place side by side
have a strong tendency to occur side by side	put together indiscriminately