constellate vs clump

constellate is not a noun while clump is a noun.

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

As verbs, constellate and clump are synonyms defined as:

Other synonyms of constellate include cluster, flock.

constellate (noun)	clump (noun)
	a heavy dull sound (as made by impact of heavy objects)
	a grouping of a number of similar things
	a compact mass

constellate (verb)	clump (verb)
form a constellation or cluster	gather or cause to gather into a cluster
come together as in a cluster or flock	walk clumsily
scatter or intersperse like dots or studs	come together as in a cluster or flock
	make or move along with a sound as of a horse's hooves striking the ground