clump vs bunch

clump and bunch both are nouns.

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

As nouns, clump and bunch are synonyms defined as:

Other synonyms of clump include cluster, clustering.

As verbs, clump and bunch are synonyms defined as:

Other synonyms of clump include bundle, cluster.

As verbs, bunch is a hyponym of clump; that is, bunch is a word with a more specific, narrower meaning than clump:

Other hyponyms of clump include huddle, huddle together, bunch together, bunch up.

clump (noun)	bunch (noun)
a heavy dull sound (as made by impact of heavy objects)	a grouping of a number of similar things
a grouping of a number of similar things	an informal body of friends
a compact mass	any collection in its entirety

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