cluster vs constellate

cluster is a noun but constellate is not a noun.

Word	Noun	Adjective	Verb	Adverb
cluster	Yes	No	Yes	No
constellate	No	No	Yes	No

As verbs, cluster and constellate are synonyms defined as:

Other synonyms of cluster include clump, flock.

cluster (noun)	constellate (noun)
a grouping of a number of similar things

cluster (verb)	constellate (verb)
gather or cause to gather into a cluster	form a constellation or cluster
come together as in a cluster or flock	come together as in a cluster or flock
	scatter or intersperse like dots or studs